Olds fired six shutout innings after being promoted from Triple-A on Aug. 17, but he'll end up as the roster casualty required to make room for Garrett Whitlock (elbow), who returned from the IL on Saturday. Olds owns a 5.33 ERA and 1.33 WHIP across 50.2 innings at Worcester this season, but his strong first impression with the Red Sox could keep him in consideration for another promotion down the stretch if the big club's bullpen depth is tested again.

Olds will receive his first call-up to the big leagues after submitting a 5.33 ERA and 74:28 K:BB over 50.2 frames this season with Worcester. The right-hander -- who turned 27 earlier this month -- will likely provide Boston with some bullpen protection for a short period of time before returning to Worcester.