Aguiar will miss the entire 2025 season after undergoing Tommy John surgery, Mark Sheldon of MLB.com reports.
Aguiar ended the season on the 15-day injured list with a right shoulder sprain, but it's the elbow that wound up requiring an operation. The 23-year-old collected a 6.25 ERA and 19:12 K:BB over 31.2 innings covering seven starts for the Reds in 2024. Barring complications during his rehab, Aguiar should be ready for spring training ahead of the 2026 season.
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Reds' Julian Aguiar: Ends season on IL
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The Reds placed Aguiar on the 15-day injured list Tuesday with a right shoulder sprain.
It's unclear how long Aguiar's shoulder has been an issue, but he was rocked for seven runs over four innings versus Atlanta his last time out. The right-hander will conclude his rookie season with a 6.25 ERA, 1.33 WHIP and 19:12 K:BB over 31.2 innings of work. Carson Spiers is likely to slide into Aguiar's rotation spot this week.
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Reds' Julian Aguiar: Rough day vs. Atlanta
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Aguiar (2-1) took the loss Thursday against Atlanta, allowing seven runs on six hits and two walks over four innings. He struck out four.
Aguiar had been on a solid run coming into Thursday's outing, allowing five runs on just seven hits in his last three starts (13.2 innings). However, the rookie right-hander ran into a hot Atlanta lineup, as he was charged with a season-high seven runs in his first big-league loss. The 23-year-old Aguiar now sports a 6.25 ERA, 1.33 WHIP and 19:12 K:BB through his first 31.2 innings. He's currently lined up for a road matchup with Cleveland next week in what'll likely be his final start of the season.
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Reds' Julian Aguiar: Nabs win with quality start
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Aguiar (2-0) picked up the win Friday, giving up three runs on three hits and two walks over 6.1 innings in an 8-4 victory over the Twins. He struck out four.
The rookie right-hander delivered his second career quality start on 86 pitches (57 strikes) but Aguiar was locked in a 1-1 pitchers' duel with Bailey Ober until the Reds erupted for six runs in the top of the seventh, securing the win for the 23-year-old. Through his first six big-league outings, Aguiar carries a 4.88 ERA, 1.23 WHIP and 15:10 K:BB. He lines up for his next trip to the mound at home next week against Atlanta.
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Reds' Julian Aguiar: Can't escape fifth inning
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Aguiar did not factor into the decision Sunday, allowing two hits and two walks over 4.2 scoreless innings against the Mets. He struck out two.
Aguiar didn't allow a run but labored through 90 pitches and was removed one out shy of completing the fifth inning. It was the fourth time in five starts he's failed to get through the fifth, though it was also the fourth time he's allowed two runs or fewer. Through 21.1 innings Aguiar carries a 5.06 ERA and 1.36 WHIP with an 11:8 K:BB. In order to provide value to the Reds beyond 2024, Aguiar will need to improve that ratio along with his efficiency. His next opportunity is slated to take place in Minnesota when the Reds travel to take on the Twins.
Reds' Julian Aguiar: Can't get through three innings
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Aguiar didn't factor into the decision Monday against Houston, allowing two runs on two hits and two walks across 2.2 innings. He struck out two.
Aguiar pitched a clean first and second inning, only allowing one runner to reach via an error. The rookie ran into a jam in the third inning, and he was replaced after giving up a two-run single with the bases loaded. The 23-year-old had his shortest outing of his young career and now has a 6.48 ERA through 16.2 innings.
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Reds' Julian Aguiar: Named Monday's starter
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Aguiar will start Monday's game against the Astros, Charlie Goldsmith of The Cincinnati Enquirer reports.
Aguiar will be pitching after just three days of rest, though the Reds seem to be comfortable sending him back out for another start after he threw 78 pitches over four innings Thursday. The 23-year-old righty has allowed 10 earned runs in just 14 innings through his first three MLB starts and will be facing an Astros offense that has posted a .748 OPS since the start of August.
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Reds' Julian Aguiar: Struggles versus Athletics
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Aguiar allowed six runs on 10 hits and a walk while striking out one over four innings in a no-decision versus the Athletics on Thursday.
Aguiar allowed three home runs, including two to Lawrence Butler. This was the worst of Aguiar's first three major-league starts, though this was his first start at home in Cincinnati's hitter-friendly Great American Ball Park. Aguiar now has a 6.43 ERA, 1.50 WHIP and 7:4 K:BB across 14 innings. The Reds have dealt with a significant number of injuries to starting pitchers this year, so Aguiar has a chance to stick in the rotation over the final month of the season. He's tentatively projected to make his next start at home versus the Astros.
Aguiar (1-0) earned the win against the Pirates on Saturday, allowing two runs on three hits and two walks while striking out four over six innings.
Aguiar's lone mistake Saturday was the home-run ball served up to Rowdy Tellez, but he was otherwise lights out in his second career start. Aguiar kept the Pirates off balance all night and possibly earned himself another turn in the rotation. It helps that the rookie has allowed just three walks and seven hits in his first 10 innings of work.
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Reds' Julian Aguiar: Awarded another start
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Aguiar is scheduled to start Saturday's game against the Pirates at PNC Park, Gordon Wittenmyer of The Cincinnati Enquirer reports.
The rookie right-hander will make his second turn through the rotation after covering four innings in his MLB debut in Toronto this past Monday, when he took a no-decision after striking out two batters while giving up two earned runs on four hits and one walk. With Hunter Greene (elbow) and Andrew Abbott (shoulder) recently joining Graham Ashcraft (elbow) and Brandon Williamson (shoulder) on the injured list, Aguiar should have the opportunity to make additional starts beyond Saturday.
Aguiar didn't factor into the decision Monday against Toronto, allowing two runs on four hits and one walk across four innings. He struck out two.
The Reds kept Aguiar's MLB debut brief, pulling the 23-year-old after 57 pitches. He surrendered his first big-league home run to the third batter he faced, as Vlad Guerrero went yard with two outs in the first frame. Aguiar was recalled to fill the rotation spot of Hunter Greene (elbow) and could stick around for another start, which would likely come this weekend against Pittsburgh.
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Reds' Julian Aguiar: Summoned ahead of MLB debut
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The Reds selected Aguiar's contract from Triple-A Louisville on Monday, Charlie Goldsmith of The Cincinnati Enquirer reports.
Aguiar will make his major-league debut Monday in Toronto, taking the rotation spot of the injured Hunter Greene (elbow). The 23-year-old has split his 2024 season between Louisville and Double-A Chattanooga, collecting a 3.79 ERA and 95:29 K:BB over 116.1 frames between the two stops. Aguiar should have an opportunity to make at least one additional start later this week, which would come in Pittsburgh.
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Reds' Julian Aguiar: Could start Monday
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Aguiar is expected to be called up from Triple-A Louisville to start Monday's game in Toronto, C. Trent Rosecrans of The Athletic reports.
If Aguiar gets summoned from Triple-A, he would be making his MLB debut as a replacement in the rotation for Hunter Greene (elbow), who was placed on the injured list over the weekend. The 23-year-old right-hander made nine starts for Louisville this season, with his most recent outing coming this past Tuesday, when he allowed two runs on three hits with seven strikeouts over six innings. Aguiar, the organization's pitcher of the year for 2023, opened the season at Double-A Chattanooga and made 13 starts for the club before his promotion to Triple-A in June.
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Reds' Julian Aguiar: Praised by GM
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Aguiar impressed Cincinnati president of baseball operations Nick Krall during the pitcher's first big-league camp, Jim Bowden of The Athletic reports. "He showed excellent poise in his first big-league camp and competes well," Krall said. "His stuff continues to improve and he has a chance to be a quality big-league pitcher in the near future."
Bowden asked each team's decision-makers for one prospect that made an impression this spring, and Krall lauded Aguiar, a 12-round pick in 2021. The right-hander's spring results in two games don't jump off the page, but he's coming off a breakout season in stops at High-A Dayton and Double-A Chattanooga in 2023 and was named the organization's Minor League Pitcher of the Year. Aguiar was particularly dominant for Dayton, where he used a mid-90s fastball, plus slider and high groundball rate to post a 1.92 ERA and .173 batting average against. He was less successful in Double-A but pitched better than his 4.28 ERA suggests (.340 BABIP, 3.53 xFIP). He'll likely open 2024 at Double-A with a chance to reach Triple-A Louisville.
