Ramirez was recalled from Triple-A Indianapolis on Friday, Alex Stumpf of DKPittsburghSports.com reports.
Ramirez was sent down Sunday but will quickly rejoin the Pirates' bullpen after Colin Holderman (shoulder) was placed on the 15-day injured list Friday. Over six relief appearances with the Pirates this year, Ramirez has posted a 6.43 ERA and 1.71 WHIP in seven innings.