BOSTON, MA—The Boston Red Sox optioned right-handed pitcher Tanner Houck to the Alternate Training Site following last night’s game against the Tampa Bay Rays.

Chief Baseball Officer Chaim Bloom made the announcement.

The Red Sox’ active major league roster is at 25.

Houck, 24, made his first career Opening Day roster in 2021. The right-hander started the Red Sox’ second game of the season on April 3 against the Baltimore Orioles, allowing three runs (two earned) over 5.0 innings during a 4-2 loss. He also pitched an inning of relief last night against the Rays, striking out two batters and allowing an unearned run in the 11th frame. Selected by Boston in the first round of the 2017 June Draft, Houck is 3-1 with a 1.17 ERA (3 ER/23.0 IP) in five career major league outings (four starts).