Walter is slated to start Sunday's game against the Twins in Houston, Brian McTaggart of MLB.com reports.
As expected, Walter will receive a second straight turn through Houston's six-man rotation while the Astros remain short on healthy arms with six starting pitchers currently residing on the injured list. Only one of those six injured pitchers (J.P. France) has resumed facing hitters at this point, so Walter could be in store for an extended run in the rotation. He's pitched well in both of his two starts with Houston this season, striking out five over five shutout innings May 20 at Tampa Bay and recording another five strikeouts over six innings of two-run ball this past Sunday in Cleveland. The 28-year-old southpaw has enjoyed a similar level of success at Triple-A Sugar Land, where he compiled a 2.08 ERA, 0.76 WHIP and 49:7 K:BB in 47.2 innings prior to getting called up last week.
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Astros' Brandon Walter: Earns quality start in no-decision
Rotowire
Walter allowed two runs on six hits while striking out five across six innings, but he did not factor into Sunday's decision against the Guardians. He did not issue a walk.
Walter was promoted from Triple-A Sugar Land to make his second major-league start of the season. He put the Astros behind after yielding a two-run homer to Bo Naylor in the second, but Walter kept the Guardians off the board the rest of the way and retired the last 10 batters he faced. Per Matt Kawahara of the Houston Chronicle, the Astros plan on using a six-man rotation during their stretch of 13 straight games, which puts Walter in line to make his next start against the Twins at home next weekend.
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Astros' Brandon Walter: Promoted for Sunday's start
Rotowire
The Astros recalled Walter from Triple-A Sugar Land to start Sunday's game against the Guardians, Brian McTaggart of MLB.com reports.
The left-hander is joining the Astros to start Sunday and give Lance McCullers some extra rest between outings. Walter made his season debut for the Astros on May 20 in Tampa Bay and covered five scoreless frames, and he's enjoyed a dominant campaign at Sugar Land with a 2.08 ERA, 0.76 WHIP and 49:7 K:BB across 47.2 innings.
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Astros' Brandon Walter: Set for Sunday start
Rotowire
Walter will be recalled from Triple-A Sugar Land to start Sunday against the Guardians in Cleveland, Brian McTaggart of MLB.com reports.
Walter will be kicking off his second stint of the season with the Astros, as he previously was called up to make a spot start May 20 and delivered five shutout innings while striking out five in a no-decision against Tampa Bay. Since then, Walter has continued rolling at Sugar Land, allowing just two earned runs on 11 hits and no walks while striking out 15 over 12 innings between his last two starts.
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Astros' Brandon Walter: With team on taxi squad
Rotowire
Walter is in Cleveland on Saturday and will be part of the Astros' taxi squad Matt Kawahara of the Houston Chronicle reports.
Walter's presence indicates that the 28-year-old southpaw could start in Sunday's series finale against the Guardians, per Kawahara. Walter has a 3-1 record across 11 games (seven starts) with Triple-A Sugar Land this season and holds a 2.08 ERA, 0.76 WHIP and 49:7 K:BB across 47.2 innings. He made a spot start for Houston against Tampa Bay on May 20, during which he allowed three hits and one walk while striking out five across five scoreless innings while not factoring into the decision.
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Astros' Brandon Walter: Optioned after strong outing
Rotowire
The Astros optioned Walter to Triple-A Sugar Land on Wednesday, Matt Kawahara of the Houston Chronicle reports.
Walters spun five scoreless frames and struck out five in a start Tuesday versus the Rays, but he nonetheless finds himself back in the minors a day later. The left-hander has likely earned future starts at some point later this season.
Astros' Brandon Walter: Tosses five scoreless innings
Rotowire
Walter did not factor into the decision against the Rays on Tuesday, allowing three hits and one walk while striking out five across five scoreless innings.
Walter was called up from Triple-A ahead of Tuesday's start after posting a 2.27 ERA, 0.71 WHIP and 34:7 K:BB across 35.2 innings with Sugar Land. He faced four batters or fewer in all five innings he pitched and was in position for the win, but he came away with the no-decision after the Rays scored two runs in the eighth inning. It was the first major-league start of Walter's career, and he'll likely be in the Astros' rotation for as long as Spencer Arrighetti (thumb) is on the injured list. Walter's next start is tentatively slated for this weekend at home against the Mariners.
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Astros' Brandon Walter: Added to roster
Rotowire
The Astros selected Walter's contract from Triple-A Sugar Land on Tuesday, Chandler Rome of The Athletic reports.
Walter will start Tuesday's contest at Tampa Bay. The left-hander has posted a 2.27 ERA and 34:7 K:BB over 35.2 innings with Sugar Land this season. With Hayden Wesneski (elbow) out for the season and Spencer Arrighetti (thumb) not close to returning, Walter will have a chance to stake his claim to a rotation spot in Houston.
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Astros' Brandon Walter: Named Tuesday's starter
Rotowire
Walter will start Tuesday's game against the Rays, Matt Kawahara of the Houston Chronicle reports.
Walter was rumored to be in the mix for a promotion, and the team has since confirmed his status as Tuesday's starting pitcher. It remains to be seen whether the 28-year-old will be able to stick around for another turn through the rotation given the number of injuries to the team's starting pitching staff. Walter has a 1.23 ERA, 0.64 WHIP and 22:1 K:BB over his last 22 innings at Triple-A, although he hasn't logged five-plus innings in an appearance since logging six innings May 3.
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Astros' Brandon Walter: Could draw start Tuesday
Rotowire
The Astros added Walter to their taxi squad Monday and could call him from Triple-A Sugar Land to start Tuesday's game against the Rays in Tampa, Chandler Rome of The Athletic reports.
Walter has been sharp with Sugar Land in 2025, posting a 2.27 ERA and 34:7 K:BB over 35.2 innings covering five starts and four relief appearances. The southpaw's lone previous big-league action came back in 2023, when he turned in a 6.26 ERA over nine relief appearances with the Red Sox. If Walter does in fact get called up to start Tuesday, he could be sent back down to Sugar Land after the game.
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Astros' Brandon Walter: Sent to minor-league camp
Rotowire
The Astros reassigned Walter to minor-league camp Thursday, Brian McTaggart of MLB.com reports.
Walter previously saw big-league action out of the Boston bullpen in 2023, but he was released this past August after a left shoulder strain kept him from pitching throughout the 2024 season. He joined Houston on a minor-league deal shortly after his release from Boston and was cleared for spring training, but he fell short in his bid for a long-relief role with the big club after giving up four earned runs on nine hits and three walks over seven innings across his four Grapefruit League outings. Walter will likely open the season at Triple-A Sugar Land, and he could be a candidate to work out of the rotation.
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Astros' Brandon Walter: Makes spring debut
Rotowire
Walter (shoulder) allowed one run on two hits and a walk while striking out one batter over one inning in Saturday's 6-3 loss to the Nationals in Grapefruit League action.
Walter missed the entirety of the 2024 season while nursing a right shoulder strain, but he's now all set for the 2025 campaign. The left-hander last pitched in 2023, producing a 6.26 ERA and 1.70 WHIP with 16 strikeouts over 23.0 innings in nine appearances with the Red Sox. Walter is participating in spring training as a non-roster invitee and if he sticks around with the Astros, he'll likely begin the year with Triple-A Sugar Land.
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Astros' Brandon Walter: Catches on with Houston
Rotowire
The Astros signed Walter (shoulder) to a minor-league contract Thursday.
Walter has been sidelined all season with a shoulder issue and was released by the Red Sox earlier this week. It's not clear what his current health status is, but the Astros have added the 27-year-old southpaw as a depth piece.
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Brandon Walter: Becomes free agenet
Rotowire
The Red Sox released Walter (shoulder) on Friday, Ian Browne of MLB.com reports.
Walter has been on Triple-A Worcester's 60-day injured list since May 9 due to a left shoulder strain. He was designated for assignment by the Red Sox on Tuesday, and rather than stay in the organization, the 27-year-old left-hander will opt for free agency. Walter made nine appearances for Boston in 2023, posting a 6.26 ERA and 1.70 WHIP across 23 innings.
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Red Sox's Brandon Walter: Removed from 40-man roster
Rotowire
The Red Sox designated Walter (shoulder) for assignment Tuesday, Gabrielle Starr of the Boston Herald reports.
The move frees up a spot on the 40-man roster for trade-deadline acquisition Lucas Sims. Walter has been sidelined all season with a shoulder strain, an injury he suffered in early March. Assuming he clears waivers, Walter will remain on Triple-A Worcester's 60-day injured list.
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Red Sox's Brandon Walter: Shifts to Triple-A's 60-day IL
Rotowire
Triple-A Worcester transferred Walter (shoulder) from its 7-day injured list to the 60-day IL on Wednesday.
Walter possesses a spot on the Red Sox's 40-man roster, but he's currently residing on the Triple-A club's IL since he was optioned to the affiliate in early March. He strained his left shoulder toward the end of camp and has yet to pitch for Worcester. His season debut now doesn't appear as though it'll come until at least June as a result of his move to the 60-day IL.
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Red Sox's Brandon Walter: Shut down with shoulder strain
Rotowire
Walter will begin the season on the injured list due to a strained left shoulder, Chris Cotillo of The Springfield Republican reports.
Walter will remain in Fort Myers for extended spring training as he works his way back from his injury. The 27-year-old southpaw will head to Triple-A Worcester once he's healthy and could contribute out of the Red Sox's bullpen at some point in 2024.
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Red Sox's Brandon Walter: Cut from MLB camp
Rotowire
The Red Sox optioned Walter to Triple-A Worcester on Wednesday, Pete Abraham of The Boston Globe reports.
Walter has had a good spring, yielding just one run with a 4:1 K:BB over 4.2 innings. The Red Sox don't have room for him in the rotation or bullpen, though, so he'll begin the season at Worcester, where he'll likely serve as a starter.
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Player Bio
HT/WT: 6-2, 201 lbs
Birthplace: New Castle, DE
Age: 28
Experience: R
Bats/Throws: L, L
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