Giants Place Pitcher Adrian Houser on Injured List

San Francisco Giants starting pitcher Adrian Houser was placed on the 15-day injured list with a right forearm strain on Wednesday, August 26, 2026, following an early exit from his previous start against the Cincinnati Reds.

Houser departed Tuesday's game after throwing just 26 pitches over 1.2 innings due to physical discomfort in his throwing arm. The move leaves San Francisco's pitching rotation severely depleted as the team falls to 24 games under .500.

"[It] started a little bit in the [Reds catcher Tyler] Stephenson at-bat at the end of the first, and then went back out for the second," Houser said. "Just kind of feeling it on every pitch. I was trying to gut through it, get through it. Been barking a little bit, but you know, just kind of got to the point where I was a little just feeling it every time, so we wanted to play it safe."

Houser indicated that he hoped the issue was minor ahead of undergoing further medical evaluation in San Francisco.

"So hopefully everything's good. Just minor setback, little tightness, but get{ "title": "Adrian Houser Placed on IL as Giants Suffer Ninth Inning Collapse", "title_slug": "adrian-houser-il-giants-collapse", "description": "The San Francisco Giants placed pitcher Adrian Houser on the 15-day IL after a 10-9 loss to the Cincinnati Reds, marking another injury set-back.", "keywords": "San Francisco Giants, Adrian Houser, Cincinnati Reds, MLB, Injured List, Tony Vitello, Eugenio Suarez", "category_id": "17", "tags": "San Francisco Giants, MLB, Adrian Houser, Baseball Injuries", "thumbnail": "baseball field oracle park pitching", "translated_caption": "(© Neville E. Guard-Imagn Images)", "content": "

San Francisco Giants starter Adrian Houser was placed on the 15-day injured list on August 26, 2026, following a right forearm strain during an eventual 10-9 loss to the Cincinnati Reds at Oracle Park.

Houser departed Tuesday's contest after pitching just 1.2 innings and throwing 26 pitches. An MRI later confirmed the forearm strain, prompting San Francisco to promote right-handed pitching prospect Braxton Roxby from Triple-A Sacramento to fill the roster spot.

The right-hander explained the onset of the discomfort during his final outing on the mound.

"[It] started a little bit in the [Reds catcher Tyler] Stephenson at-bat at the end of the first, and then went back out for the second," Houser said. "Just kind of feeling it on every pitch. I was trying to gut through it, get through it. Been barking a little bit, but you know, just kind of got to the point where I was a little just feeling it every time, so we wanted to play it safe."

Houser expressed optimism regarding the duration of his absence prior to undergoing additional medical evaluation.

"So hopefully everything's good. Just minor setback, little tightness, but get an MRI tomorrow and go from there," Houser added.

Giants manager Tony Vitello addressed the team's need for fresh relief options given their current pitching schedule.

"You know, we had [Roxby] in spring training a bunch, he's throwing the ball well, and the big thing for us is he can provide length if we need it," Vitello said. "I like the way he attacks with his fastball, and he's a good athlete too. So you know, we'll fulfill a need because we've been talking so much about this stretch we have. We're now to the point where we've got to start mapping out what's going to happen on Monday."

Vitello further emphasized the value of bringing in rested pitchers to absorb relief innings.

"So fresh arms, and then again, guys like [Spencer] Bivens and [him] that can provide a little bit of length is the big thing," Vitello stated.

San Francisco's roster moves coincided with left-handed pitcher Carson Whisenhunt being transferred to the 60-day injured list. Whisenhunt suffered a torn ulnar collateral ligament in his left elbow that requires surgery, likely sidelining him through the 2027 season.

The roster decisions followed a dramatic ninth-inning collapse where the Giants squandered a six-run lead against Cincinnati. Eugenio Suarez hit a grand slam as part of a seven-run rally in the final frame, delivering the Reds a 10-9 win and preventing a San Francisco series sweep. According to Sportradar, the blown six-run lead was the largest ninth-inning margin squandered by the Giants since at least 1901.

San Francisco continues its homestand on Thursday night, sending right-hander Landen Roupp to the mound against the Arizona Diamondbacks.