Morillo earned the save in Wednesday's 1-0 win over the Phillies, walking one and striking out two in a scoreless ninth inning.
Morillo was tasked with facing the top of the Phillies' order in the ninth inning after Arizona took a 1-0 lead in the eighth. He promptly struck out Kyle Schwarber and Trea Turner, earning his third save of the season. Morillo has been stellar of late, delivering 17 straight scoreless innings to stake his claim as the Diamondbacks' primary closer. His ERA now sits at 2.11 across 55.1 innings this year with a 1.05 WHIP and 64:21 K:BB.
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Diamondbacks' Juan Morillo: Secures second save
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Morillo worked a perfect ninth inning Wednesday to record his second save of the season in a 2-0 win over the Cubs. He didn't strike out a batter.
Kevin Ginkel had pitched the prior two days and Brandyn Garcia handled the eighth inning, so Morillo was summoned in the ninth and got the job done on an efficient eight pitches (seven strikes). The closer situation for Arizona remains murky, with all three of those pitchers having now recorded saves in August while Justin Martinez is also likely to work into the mix after making his 2026 debut last week. Morillo's making a strong case for regular high-leverage work, however -- his other save this season came back in April, but he hasn't been tagged for a run since July 17, reeling off 14 straight scoreless appearances with a 0.79 WHIP and 14:3 K:BB in 14 innings while picking up one win and seven holds.
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Diamondbacks' Juan Morillo: Gives up lead again
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Morillo allowed one run on one hit and one walk while striking out one over two-thirds of an inning in Friday's 3-2 loss to the Rockies.
Morillo gave up an eighth-inning lead for the second consecutive day against Colorado. He had a 1.83 ERA prior to blowing those leads and had become a reliable late-inning arm for manager Torey Lovullo, who had recently dialed back on the reliever's usage. Morillo appeared in 15 of the team's first 29 games before being deployed just six times in the subsequent 19 contests prior to Thursday.
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Diamondbacks' Juan Morillo: Suffers loss Saturday
Rotowire
Morillo (0-1) was tagged with the loss Saturday, allowing two runs on one hit and one walk over two-thirds of an inning in a 3-2 loss to the Dodgers.
Morillo got the first two outs in the eighth inning before walking Mookie Betts, which set the stage for Will Smith's two-run home run. Arizona manager Torey Lovullo has tabbed Morillo as an option against lefty batters in Arizona's all-righty bullpen, and he successfully navigated Shohei Ohtani and Kyle Tucker before giving up the runs.
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Diamondbacks' Juan Morillo: Rejoins big-league bullpen
Rotowire
The Diamondbacks recalled Morillo from Triple-A Reno on Monday.
Morillo has offered a mixed bag during his several stints in the majors, posting a 4.55 ERA and 32:20 K:BB over 31.2 innings. Even with his control and command issues, the hard-throwing Morillo has sometimes found himself in high-leverage situations as part of an unsettled Arizona bullpen.
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Diamondbacks' Juan Morillo: Optioned to Reno
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The Diamondbacks optioned Morillo to Triple-A Reno on Wednesday.
Morillo gave up a run on one hit and two walks without recording an out in Tuesday's loss to the Brewers. His latest appearance elevated his ERA to 4.55 to go with his 1.77 WHIP through 31.2 innings with the D-backs, and he'll now aim to get back on track in the minors. Taylor Rashi was promoted from Reno to take Morillo's place in Arizona's bullpen.
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Diamondbacks' Juan Morillo: First career save
Rotowire
Morillo picked up the save Tuesday against the Rangers, throwing a perfect ninth inning with no strikeouts.
The Diamondbacks are still searching for a closer to replace Kevin Ginkel (shoulder), who was shut down for the season in early August. Morillo, a 26-year-old rookie who's bounced between the big leagues and Triple-A during 2025, appears to be in the running for the position. While he has a 4.76 ERA and 28:16 K:BB in 28.1 innings with Arizona this season, Tuesday's performance could have earned him some trust with manager Torey Lovullo. Morillo posted a 3.00 ERA in 15 innings with Triple-A Reno this year.
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Diamondbacks' Juan Morillo: Lets close game get away
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Morillo allowed four runs on five hits while striking out one over one inning in Saturday's 10-5 loss to the Angels.
Morillo, who entered the game to begin the eighth inning with a 0.82 ERA over his previous 14 outings, let a one-run deficit balloon to five by the time he was done. In the wake of several bullpen injuries, the rookie's name was recently floated for high-leverage situations, but he was not up to challenge Saturday. Although walks didn't play a role in Saturday's performance, control has been a challenge for Morillo, who owns a 5.3 BB/9.
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Diamondbacks' Juan Morillo: Optioned to Triple-A
Rotowire
The Diamondbacks optioned Morillo to Triple-A Reno on Wednesday.
The 26-year-old's move to the minors will clear a spot on the active roster for Jake Woodford, who signed with the D-backs on Wednesday. Morillo has posted a 4.01 ERA and 1.54 WHIP across 24.2 innings in the majors this year, and he could return to Arizona later in the season when the Diamondbacks need a fresh bullpen arm.
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Diamondbacks' Juan Morillo: Expected to be optioned
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The Diamondbacks are expected to option Morillo to Triple-A Reno on Wednesday, Nick Piecoro of the Arizona Republic reports.
Morillo has made 28 relief appearances for the Diamondbacks this season, posting a 4.01 ERA and 25:13 K:BB across 24.2 frames. He'll be replaced on the roster by Jake Woodford, who will offer the Arizona bullpen more length.
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Diamondbacks' Juan Morillo: Added to big-league bullpen
Rotowire
The Diamondbacks selected Morillo's contract from Triple-A Reno on Saturday.
Morillo has allowed one run in 6.1 innings to begin the season at Triple-A, and he'll now be called upon to provide the team with relief depth while Joe Mantiply and Bryce Jarvis head to the minors to correct their early struggles. The 26-year-old Morillo will be making his MLB debut whenever he gets into a game.