Scahill was optioned to Triple-A Indianapolis on Saturday, Stephen J. Nesbitt of the Pittsburgh Post-Gazette reports.
The Pirates made some changes to the bullpen Saturday by optioning Scahill and Wilfredo Boscan while recalling Cory Luebke and Curtis Partch. Scahill made four appearances during his most recent stint with the Pirates, pitching 5.1 scoreless innings while allowing just five total baserunners. He'll head back to Triple-A for now, but his strong run with the Pirates over the past couple of weeks could earn him a recall later in the season.