Red Sox Shut Down Tanner Houck Indefinitely Due to Flexor Soreness Recurrence

Boston Red Sox right-hander Tanner Houck has been shut down indefinitely from throwing due to a reoccurrence of flexor soreness, as announced by manager Alex Cora. Houck felt arm soreness after his Triple-A Worcester rehab start on July 9 and was subsequently pulled from his rehab assignment on Friday. While no surgery is required, the 29-year-old will undergo rest and treatment. Houck was initially placed on the injured list with a right flexor pronator strain on May 13 and struggled in 2025 with an 8.04 ERA in 43.2 innings for Boston, as well as a 5.74 ERA in 15.2 innings across five rehab appearances, making his return to the mound this season uncertain and further highlighting the Red Sox' need for rotation depth.