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
Rotowire
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
Rotowire
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
Rotowire
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
Rotowire
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.
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Reds' Julian Aguiar: Can't get through three innings
Rotowire
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: Summoned ahead of MLB debut
Rotowire
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.
