Reds placed LHP Sean Marshall on the 15-day disabled list, retroactive to May 21, with a sprained left shoulder. It's the second time this season that the shoulder has sent him to the DL, though the Reds called it tendinitis the first time around. The club figures to take it slowly with Marshall this time, so he could be looking at an extended absence. Manny Parra (pectoral) has been activated and will take Marshall's spot in the bullpen.