Nelson (4-2) earned the win against the Blue Jays on Thursday, allowing one run on one hit and two walks while striking out four across 5.2 innings.
Nelson faced the minimum number of batters in four of the six innings he pitched, with the lone blemish coming in the second inning when he yielded a solo home run to Alejandro Kirk. Nelson has allowed one earned run or less in five of six starts this season and has seemingly entrenched himself in the Diamondbacks' rotation following the loss of Corbin Burnes (elbow). Nelson is lined up to face the White Sox on the road next week.
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Diamondbacks' Ryne Nelson: Steady in Friday's win
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Nelson (3-2) allowed one unearned run on six hits and a walk while striking out three over five innings to earn the win over the Padres on Friday.
Nelson gave up seven runs over just three innings in Cincinnati in his last start, but a return home served him well. He's allowed just one unearned run over 15.2 innings across his last three home appearances. The right-hander appears to have done enough for now to hold onto a spot in the rotation, which opened up when Corbin Burnes (elbow) suffered a season-ending injury and subsequently elected for Tommy John surgery. Nelson has maintained a serviceable 4.14 ERA, 1.14 WHIP and 41:16 K:BB across 50 innings over 15 appearances (five starts) this season. His next start is projected to be at Toronto.
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Diamondbacks' Ryne Nelson: Roughed up for seven runs in loss
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Nelson (2-2) took the loss against the Reds on Saturday, allowing seven runs on four hits and four walks while striking out three across three innings.
Nelson put the Diamondbacks in the hole right out of the gate after yielding five runs in the first inning, three of which came on Christian Encarnacion-Strand's three-run homer. Nelson settled in to keep the Reds off the board over the next two frames, but he was pulled in the fourth and tagged for two more runs. It was a rough outing for the 27-year-old right-hander, who is looking to keep a permanent spot in the Diamondbacks' rotation with Corbin Burnes (elbow) scheduled to undergo Tommy John surgery. Nelson will look to bounce back in his next start, tentatively slated for next weekend at home against the Padres.
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Diamondbacks' Ryne Nelson: Drawing start Saturday
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Nelson is slated to start Saturday's game against the Reds at Great American Ball Park.
Nelson will pick up his fourth start of the season Saturday and could have an opportunity to stick around in the rotation for the remainder of 2025 with Corbin Burnes (elbow) set to undergo Tommy John surgery next week. Since being lit up by the Cubs for five earned runs while recording just two outs in an April 18 game, Nelson has pitched to a 1.72 ERA, 0.86 WHIP and 23:9 K:BB in 31.1 innings.
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Diamondbacks' Ryne Nelson: Could rejoin rotation, if needed
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Nelson could rejoin the rotation if Corbin Burnes (elbow) isn't able to make his next start, Alex Weiner of ArizonaSports.com reports.
Burnes was removed from Sunday's 3-1 win over the Nationals due to elbow discomfort and will undergo an MRI on Monday. If Burnes needs to miss time, the Diamondbacks have a quality replacement on hand in Nelson, who had been filling in for Eduardo Rodriguez (shoulder) before moving to the bullpen Friday in anticipation of Rodriguez's return from the injured list this week. Over his last eight appearances, Nelson has delivered a 1.72 ERA, 0.86 WHIP and 23:9 K:BB across 31.1 innings.
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Diamondbacks' Ryne Nelson: Next start pushed back
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Nelson's next start is expected to be Tuesday against Atlanta, Alex Weiner of Arizona Sports reports.
Nelson was in line to start Sunday's series finale against the Nationals, but Arizona is moving Corbin Burnes up the rotation to make that start on regular rest. The move means two extra days of rest for Nelson, who threw a season-high 84 pitches over 6.2 scoreless innings Monday against Pittsburgh. Nelson will continue to fill in for as long as needed while Eduardo Rodriguez (shoulder) works his way back from the IL. Rodriguez, who threw 55 pitches in a simulated game last Saturday, is expected to throw in the Arizona Complex League on Friday. It's unclear if that ACL game will be his lone rehab start or if more will be needed.
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Diamondbacks' Ryne Nelson: Confirmed for another start
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Nelson is slated to start Monday's game against the Pirates at Chase Field.
Eduardo Rodriguez (shoulder) has resumed throwing but isn't eligible to return from the 15-day injured list until next weekend, so Nelson will make a second straight turn through the Arizona rotation in his place. In his most recent start this past Tuesday, Nelson took a no-decision despite limiting a tough Dodgers lineup to one run on three hits and one walk. A home matchup with the 19-35 Pirates represents a more favorable spot for Nelson to claim his second win of the season.
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Diamondbacks' Ryne Nelson: Steady in return to rotation
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Nelson allowed a run on three hits and a walk while striking out two over five innings in a no-decision versus the Dodgers on Tuesday.
Nelson made his second start of the year and kept a dangerous offense mostly in check, outside of allowing an RBI double to Will Smith in the fourth inning. With Eduardo Rodriguez (shoulder) on the injured list, Nelson appears to have a chance to reclaim a starting role for a while. He threw 71 pitches (40 strikes) in this start and will need to stretch out after spending much of the early part of the season in a long-relief role. Nelson has mustered a 4.60 ERA, 1.15 WHIP and 30:11 K:BB across 31.1 innings over 11 appearances this season. He is tentatively projected for a favorable home start versus the Pirates early next week.
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Diamondbacks' Ryne Nelson: Back in bullpen Saturday
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Nelson struck out one over two perfect innings to earn the save in Saturday's 3-0 win over the Dodgers.
Nelson's previous outing was a spot start Monday versus the Mets, in which he allowed two runs over 4.1 innings while covering the absence of Corbin Burnes (shoulder). Burnes returned to the mound Saturday and delivered seven shutout innings, and Nelson was able to close out the win, needing just 16 pitches (11 strikes) over the last two frames. While Nelson got this save, he's unlikely to be a regular in the high-leverage mix. He likely got the late-inning assignment Saturday because five of Arizona's other relievers had pitched at least once over the previous two days, while he was fresh. Nelson has a 5.01 ERA, 1.16 WHIP, 23:8 K:BB, 1-1 record, one save and one blown save across 23.1 innings this season. He should settle back into a long-relief role.
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Diamondbacks' Ryne Nelson: Set for start Monday
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Nelson will start Monday's game against the Mets in Arizona, Jody Jackson of Bally Sports Arizona reports.
Nelson will get a turn in the rotation after the Diamondbacks decided to have Corbin Burnes (shoulder) skip a start while dealing with right shoulder inflammation. The right-hander made 25 starts for Arizona in 2024 but has worked exclusively out of the bullpen so far this season, logging a 5.82 ERA and 1.18 WHIP with 20 strikeouts over 17 innings in seven appearances. He got stretched out to four innings and tossed a season-high 68 pitches in his most recent relief outing ,ast Tuesday, so Nelson should be able to handle something close to a typical starter's workload Monday.
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Diamondbacks' Ryne Nelson: Logs first win
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Nelson (1-0) allowed one run on two hits and struck out three over three innings of relief to pick up the win in Saturday's 5-4 victory over the Brewers.
Nelson held Milwaukee mostly in check until the Diamondbacks rallied for five runs in the bottom of the ninth inning, giving the right-hander his first win. Since an unsightly debut, Nelson has allowed one run on three hits while striking out seven over 8.1 innings as a multi-inning reliever. While he competed for a rotation spot in camp, if the Diamondbacks need a spot starter in the near future, he may not be a candidate as he likely wouldn't be able to last five innings without first being stretched back out.
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Diamondbacks' Ryne Nelson: Long arm in bullpen
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Nelson will remain stretched out as a reliever, Alex Weiner of Arizona Sports reports. "(Nelson) is going to be able to provide us some length," Arizona manager Torey Lovullo said. "We feel like we've got some solid backup there just in case the starter doesn't give us what he needs to."
Nelson, who fell short in his bid to be the No. 5 starter, became the top long option out the bullpen following the news that Jordan Montgomery will undergo Tommy John elbow surgery. The Montgomery news also suggests that Nelson could be in line to start should a current member of the rotation require extended downtime due to injury. Nelson was a valued part of the rotation in 2024, when he improved in several underlying metrics (K:BB, K/9, BB/9, HR/9) compared to 2023.
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Diamondbacks' Ryne Nelson: Calm spring no longer
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Nelson allowed nine runs (eight earned) on 11 hits while striking out one over three-plus innings in Monday's Cactus League start against Kansas City.
Nelson's uneventful spring blew up in his fourth spring outing (third start). He was responsible for runs in all innings pitched and was chased after giving up four consecutive hits to lead off the fourth. The Royals were jumping on Nelson early in counts -- the right-hander threw just 55 pitches despite facing 19 batters. Nelson, who was a rotation regular in 2024, is competing for the fifth spot this spring.
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Diamondbacks' Ryne Nelson: Makes second spring start
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Nelson allowed one run on three hits while striking out three over 2.1 innings in Thursday's spring start against the Guardians.
Nelson toed the rubber for a second Cactus League start and worked up to 51 pitches (30 strikes). The battle for the final rotation spot kicked into high gear this week. Nelson followed Brandon Pfaadt, who started Wednesday, and Jordan Montgomery (finger) will make his spring debut Friday in what is expected to be a multi-inning relief appearance.
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Diamondbacks' Ryne Nelson: Logs two innings Friday
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Nelson allowed one hit and two walks while striking out one over two scoreless innings in Friday's spring game against Kansas City.
Nelson, making his Cactus League debut, followed starter Merrill Kelly, pitching the third and fourth innings. Nelson was a mainstay in the rotation the last two seasons -- and showed improvement in 2024 -- but he enters the spring in a battle for a rotation spot for a third consecutive season. His scoreless outing follows a similar one Thursday from Brandon Pfaadt, who is also competing for the same rotation spot along with Jordan Montgomery.
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Diamondbacks' Ryne Nelson: Has minor-league options
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Nelson still has minor-league options remaining and could open the season at Triple-A Reno, Mark Feinsand of MLB.com reports. Arizona has seven legitimate starters in camp competing for five spots.
For Nelson, who was second among starters in innings pitched in 2024, to not have a spot on lock seems odd, but the Diamondbacks have assembled plenty of rotation depth. Zac Gallen, Corbin Burnes, Merrill Kelly and Eduardo Rodriguez are set in the top four spots, with the fifth starter role coming down to Nelson, Brandon Pfaadt or Jordan Montgomery. Nelson and Pfaadt, who also has minor-league options left and led the Diamondbacks in innings in 2024, could start the year in the Aces' rotation, although Montgomery is a candidate to shift to a long-relief role.
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Diamondbacks' Ryne Nelson: Reinstated from IL
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The Diamondbacks reinstated Nelson (shoulder) from the 15-day injured list Thursday, Alex Weiner of ArizonaSports.com reports
Nelson threw 28 pitches in his second bullpen session Tuesday following his first session of 16 pitches. With his return coming near the close of the season, it seems Nelson will be used as a multi-inning reliever, but it is possible he may return as a starter. Yilber Diaz and Blake Walston were both optioned to Triple-A Reno on Thursday as part of a corresponding move.
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Diamondbacks' Ryne Nelson: Throws side session
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Nelson (shoulder) threw 28 pitches in a bullpen session Tuesday, MLB.com reports.
Nelson has now completed two side sessions since landing on the injured list, after the right-hander previously threw a 16-pitch session Saturday. Diamondbacks manager Torey Lovullo said the team is undecided about whether Nelson could return to the starting rotation or be used as a multi-inning reliever once he makes his way back from the IL. With four games left in the regular season, the bullpen is probably a more realistic landing spot for Nelson if he gets activated.
Nelson (shoulder) will throw a bullpen session Saturday, Nick Piecoro of The Arizona Republic reports.
Nelson has been on the injured list since last Saturday due to shoulder inflammation. The fact he's been cleared to return to a mound after just a week on the IL bodes well for his chances of being activated after a minimum-length stay, but he still has a few more boxes to check before the D-backs can pencil him back into their rotation.
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Diamondbacks' Ryne Nelson: Lands on injured list
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The Diamondbacks placed Nelson on the 15-day injured list Saturday with right shoulder inflammation, Jesse Friedman of GoPHNX.com reports.
Nelson surrendered five earned runs over just 4.2 innings during his most recent outing Sunday, and his shoulder troubles may help explain his poor performance. The Diamondbacks are hopeful he'll be able to return to the rotation after a minimum-length stay on the injured list, though he won't be eligible for activation until the final series of the regular season. Until Nelson is back in the fold, Arizona will likely move Jordan Montgomery from the bullpen back into the rotation.
