Phillies' Taijuan Walker: Throws bullpen session

Walker (shoulder) threw a bullpen session Saturday, Corey Seidman of NBC Sports Philadelphia reports.

Saturday marked the first time Walker has thrown off a mound since he landed on the 15-day IL with a right shoulder impingement. Phillies manager Rob Thomson said the right-hander is scheduled throw another session during the week and that the team will likely take Walker's rehab program slowly.