Triple-A Gwinnett placedFuentes on its 7-day injured list Aug. 10 due to an unspecified injury.

Fuentes hadn't pitched for Gwinnett since Aug. 2 before the Triple-A club deactivated him a week later. Following a rough four-start run with Atlanta before being optioned July 9, Fuentes had returned to form in the minors prior to being shut down, logging a 4.08 ERA, 1.19 WHIP and 23:4 K:BB in 17.2 innings over four appearances for Gwinnett.

Atlanta optionedFuentes to Triple-A Gwinnett on Wednesday.

Despite Atlanta having two long-term openings in its rotation with all of Spencer Schwellenbach (elbow), Chris Sale (ribs) and Reynaldo Lopez (shoulder) on the 60-day injured list, Fuentes hasn't pitched well enough to justify sticking around with the big club. After getting tagged for eight earned runs and lasting just one inning in his most recent outing in Tuesday's 10-1 loss to the Athletics, the 20-year-old right hander has submitted a 13.85 ERA, 2.23 WHIP and 12:6 K:BB across 13 frames through his first four big-league outings. Nathan Wiles was recalled from Triple-A in a corresponding move and will likely fill one of the open spots in the rotation this weekend in St. Louis.

Fuentes (0-3) allowed eight runs on five hits and two walks while striking out two over one-plus inning to take the loss versus the Athletics on Tuesday.

Fuentes had his worst outing yet, allowing three home runs in the first inning as the Athletics stormed ahead 5-0. He loaded the bases in the second and was pulled from the game at 40 pitches (24 strikes), only for Jesse Chavez to allow all three inherited runners to score on a Nick Kurtz grand slam. Fuentes has allowed 20 runs over 13 innings in his four major-league starts, adding a 12:6 K:BB. He's struggled, but Atlanta's rotation has been pummeled by injuries. With the team far adrift of a wild-card spot, Atlanta may be more tolerant to let Fuentes learn on the job for the remainder of the season, or at least until Chris Sale (ribs), Reynaldo Lopez (shoulder) and Spencer Schwellenbach (elbow) are healthy.

Fuentes did not factor into Wednesday's decision against the Angels, allowing two runs on four hits and three walks while striking out six across 3.2 innings.

Fuentes put Atlanta behind early, as he yielded a two-run single to Jo Adell in the first. Fuentes kept the Halos off the board for the rest of his outing, and he managed to generate 10 whiffs and log a season-high six punchouts while pushing his pitch count up to 92 pitches (52 strikes). Fuentes has not made it through four innings in each of his last two outings and has given up 12 runs over his first 12 big-league innings. He's adjusting to major-league hitting, but his call-up from Triple-A Gwinnett was out of necessity with four Atlanta starters on the injured list, most recently Chris Sale (ribs) and Spencer Schwellenbach (elbow). Fuentes is lined up to make his next start on the road against the Athletics next week.

Fuentes' next start has been pushed back to Wednesday's series finale with the Angels, with Grant Holmes moving up a day to start Tuesday's contest, Mark Bowman of MLB.com reports.

Though Fuentes will still face the same opponent as a result of the late change in Atlanta's pitching schedule, he no longer lines up for a two-start week, as Holmes is now on track to take the hill for Sunday's series finale with the Orioles. Atlanta has its next off day coming Monday, so the club would have the option of pushing Fuentes to the back of its pitching schedule during the final week before the All-Star break. Fuentes is one of Atlanta's top pitching prospects, but he's had a rough go in his first two big-league starts, giving up 10 earned runs on 14 hits and one walk while striking out four across 8.1 innings in losses to the Marlins and Mets.

Fuentes (0-2) was the pitcher of record in Wednesday's 7-3 loss to the Mets, allowing six earned runs on eight hits and no walks with one strikeout over 3.1 innings.

Fuentes opened with two scoreless innings but was charged with six runs while failing to escape the fourth. He generated just five swinging strikes on 74 pitches and has now surrendered 10 earned runs with a 4:1 K:BB over 8.1 innings across his first two major-league starts. Atlanta has an off day coming up Monday, which could allow the team to reorder its rotation and delay Fuentes' next start until July 5 versus the Orioles. If Atlanta elects to keep its rotation order intact, however, Fuentes would likely make his next turn Tuesday versus the Angels.

Fuentes is slated to start Wednesday's game against the Mets at Citi Field.

When he was initially called up from Triple-A Gwinnett last week to make his MLB debut, Fuentes was expected to make a spot start before returning to the minors. However, with Chris Sale being diagnosed over the weekend with a fractured left ribcage that will keep him on the shelf through at least the All-Star break, Fuentes should be in store for multiple turns through the rotation. Though the 20-year-old righty is regarded as one of Atlanta's top prospects, he had a so-so debut outing last Friday against a weak Miami offense, giving up four earned runs on six hits and one walk while striking out three over five innings. He'll make for a risky streaming option while he takes the hill for his second start in a tougher matchup Wednesday on the road against the Mets.

Fuentes (0-1) took the loss after throwing five innings, allowing four runs on six hits and a walk while striking out three during Friday's 6-2 loss to the Marlins.

Fuentes' rapid rise through the Atlanta minor-league system culminated with his first career MLB start Friday. He displayed his electric stuff and picked up his first MLB strikeout in the second inning against Dane Myers, and Fuentes ended up battling his way through five innings. The big blemish was a three-run home run surrendered to Agustin Ramirez, but otherwise it was a good debut for the 20-year-old right-hander. The expectation is that this was just a spot start to give all of the starters an extra day of rest, so he'll likely be sent back down to the minors soon.

Atlanta will call upFuentes from Triple-A Gwinnett to make his major-league debut Friday with a start on the road versus Miami, Mark Bowman of MLB.com reports.

Fuentes turned 20 years old Tuesday and has made only one start at the Triple-A level, but Atlanta will give him a spot start as they give their regular rotation members some extra rest. The young right-hander has made nine starts across three levels in 2025, collecting a 4.81 ERA and 48:12 K:BB over 39.1 innings. Fuentes boasts a 2.41 ERA and 23:4 K:BB over 18.2 frames covering his last four trips to the hill.

Atlanta selectedFuentes' contract from Triple-A Gwinnett on Friday.

Fuentes will make his major-league debut Friday with a start in Miami. The 20-year-old began the season at the High-A level but was recently promoted to Gwinnett, and he has collected a 2.41 ERA and 23:4 K:BB over 18.2 innings covering his last four outings. It's expected to be just a spot start for Fuentes as Atlanta looks to give its regular rotation members some extra rest.

Fuentes (hand) debuted for Triple-A Gwinnett on Saturday, covering 4.2 innings and striking out six batters while allowing one earned run on three hits and no walks.

Double-A Columbus had placed Fuentes on its 7-day injured list May 27 due to a blister on his pitching hand, but rather than reporting to a lower-level affiliate for a rehab assignment or slotting back into the Double-A rotation, the right-hander was surprisingly moved up to Gwinnett for his first start coming off the injury once he was activated Friday. The 20-year-old turned in an impressive debut for Gwinnett and has continued to elevate his standing as a prospect in 2025 after a strong showing in the Carolina League a season ago.

Double-A Columbus placedFuentes on its 7-day injured list Tuesday due to a blister on his pitching hand, Harrison Smajovits of SI.com reports.

Despite developing the blister during his May 24 start, Fuentes was effective in his final outing before landing on the shelf, striking out a season-high nine batters and allowing just one hit over four innings. Since moving up from High-A Rome in late April, Fuentes owns a 4.98 ERA, 1.32 WHIP and 24:7 K:BB over 21.2 innings with Columbus.