Gillaspie, 25, has made 11 appearances spanning 10 1/3 innings with a 4.35 ERA/3.23 FIP. This year is his first with big-league experience. He has also made nine appearances in Triple-A with a 3.14 ERA over 14 1/3 innings.
Krehbiel, 29, has been an active participant out of the bullpen for the Orioles this season, appearing in 22 games. He’s pitched to a 2.74 ERA, but just 4.48 FIP across 23 innings with a 16-to-8 strikeout-to-walk ratio. The Orioles claimed Krehbiel off waivers from the Rays last September.