Astros left-handers Brandon Walter and John Rooney will undergo season-ending elbow surgery this week, the team announced. Houston did not specify the sort of procedure either pitcher will require. Walter landed on the injured list due to elbow inflammation back in late July. Rooney also hit the IL due to inflammation, though his original placement was just a couple weeks ago.
In an additional bit of ominous news, the Astros announced that right-hander Spencer Arrighetti is slated to receive a second opinion on his elbow this week. Arrighetti, like Walter and Rooney, was originally placed on the IL due to inflammation in his elbow. (It’s common for elbow injuries to be originally diagnosed as inflammation and for a more specific diagnosis to become apparent once the swelling/inflammation dies down and a better look at the joint’s structural integrity is available.) A second opinion will conjure up fears of a worst-case scenario, though Houston has not yet suggested that surgery is on the table.
Walter’s injury is particularly deflating. The left-hander missed all of the 2024 season due to a strained rotator cuff in his left shoulder. He wound up being cut loose by the Red Sox, signing with the Astros on a minor league deal, and emerging as a key member of the 2025 staff.
In nine starts, the 29-year-old Walter pitched 53 2/3 innings and logged a 3.35 ERA, 24.5% strikeout rate and immaculate 1.9% walk rate. That breakout performance, even if truncated by this elbow injury, proved pivotal at a time when the Astros were reeling from injuries to Ronel Blanco, Hayden Wesneski and Arrighetti (who, at that point, was still on the mend from a fractured thumb rather than his current elbow concern).
Rooney, 28, made his big league debut with Houston last month. He tossed 1 1/3 innings, allowed a run, and seemingly suffered an elbow injury in the middle of that debut effort. It’s unfortunate for any player to incur an injury, though if there’s a silver lining it’s that Rooney will pick up major league service time and pay for the final four-plus weeks of the season, dating back to his Aug. 24 promotion. Had he not sustained the injury, he might’ve been optioned back to Triple-A Sugar Land at any point.
That’s probably not much consolation to Rooney, a former Dodgers third-rounder who grinded through the better part of eight professional seasons before finally getting to the majors with his third organization. He’s split the 2025 season between the Triple-A affiliates for the Marlins and Astros, pitching to a combined 2.56 ERA with a huge 34.2% strikeout rate but a clunky 14.9% walk rate.
As for Arrighetti, it’s a most unwelcome development for a pitcher who hasn’t seemed to catch any luck this year. The 25-year-old’s previously referenced fractured thumb occurred when he was playing catch in the outfield during batting practice early in the season and was struck by a line drive from a teammate. He returned from that injury in early August and made five starts, struggling through the first three before appearing to turn a corner in the fourth. In his final two starts before going back to the IL, he logged 12 innings and held opponents to three runs on seven hits and five walks with 10 strikeouts.
Manager Joe Espada had already conceded that Arrighetti’s injury might cost him the remainder of the season. Word of a second opinion from an external source only serves to increase that likelihood.
In the meantime, the Astros will turn to righty J.P. France to help deepen the staff. Chandler Rome of The Athletic reports that France is with the club in Toronto and is expected to pitch out of the bullpen. The 30-year-old France had shoulder surgery last summer and missed much of the current season rehabbing. He’s been pitching as a multi-inning reliever in Triple-A recently, though his last outing was a start: five innings of one-run ball against the Dodgers’ top affiliate.
France has an unsightly 6.59 ERA in 27 1/3 innings of Triple-A work overall this season, but he’s pitched better of late, including a pair of five-inning appearances with one combined run in his past four trips to the mound. He’ll give Espada some length at a time when Houston has eight pitchers on the big league injured list.