Philadelphia Philllies' INF Placido Polanco was played on the 15-day disabled list with lower back inflimation according to Todd Zolecki of the Zo Zone blog at MLB.com.
Polanco has missed the last three games, and the move to the disabled list is retroactive to July 23. In an interview with Bob Brookover of Philly.com, Phillies manager Charlie Manuel said that the back injury Polanco picked up is the same type of injury that forced him to miss a majority of the 2011 season.
Placido has appeared in 82 games this year, batting .255 with two home runs and 19 RBI.
A replacement for Polanco for the active roster has not been chosen at this time, although Michael Martinez looks like a possible candidate to be recalled.