Chase Utley (knee) won't begin a rehab assignment until at least June 15. Utley played in his first extended spring training game Monday in the DH spot and will play in another one Wednesday after taking Tuesday off. There are no extended spring games after that until June 12, so he'll play in simulated games and continue his regular workouts. "Generally, Chase, when he's ready to go he'll let us know," Phillies general manager Ruben Amaro said. "Just like he did on Sunday." Amaro declined to comment on whether Utley would be ready before the All-Star break.