Pirates put closer Grilli on 15-day DL
Apr 25, 2014 at 7:03p ET
The move was retroactive to April 21.
Grilli, an All-Star last season, has already blown three of seven save chances this season and has a 4.50 ERA.
Melancon has allowed two runs in 11 innings this season. Left-hander Tony Watson could also be used to close.