ARLINGTON, Texas (AP) - All-Star knuckleballer Tim Wakefield is headed to the disabled list.
The Boston Red Sox say Wakefield, who turns 43 next week, has a strained lower back.
Right-hander Clay Buchholz was recalled from Triple-A Pawtucket to start in Wakefield's place Wednesday night in Texas.
Manager Terry Francona says Wakefield got hurt throwing on the side Saturday. He last pitched July 8 against Oakland, then didn't pitch in the All-Star game.
Buchholz started Boston's first game after the All-Star break, earning a victory against Toronto before being sent back to the minors.