The Phillies acquired Kilian and Luis Arraez from the Giants on Monday in exchange for Ramon Marquez and Marty Gair, Jayson Stark of The Athletic reports.
Kilian has had a breakout season out of the San Francisco bullpen, posting a 4.26 ERA and 53:20 K:BB over 44.1 innings, logging eight saves in the process. He's 29 and has a lengthy injury history, but the Phillies will bet on Kilian being a quality setup man for them down the stretch.