Pirates place 2B Neil Walker on disabled list
Walker is hitting .244 with six home runs and 26 RBIs in 72 games this season for the Pirates, but hasn't played since experiencing pain in his right side while swinging in a loss to the Chicago Cubs on Saturday. Manager Clint Hurdle says the switch-hitting Walker cannot swing left-handed without difficulty.
Harrison is 2 for 13 in 12 games with the Pirates this season. He is thriving at Indianapolis, where he is hitting .317 with four home runs and 34 RBI in 64 games.