Diplan has allowed just one walk while striking out six in his first 6.1 big-league innings.
The right-hander had his contract selected from Triple-A Norfolk on Aug. 4, and he's provided some quality low-leverage innings out of the bullpen. Diplan carried a 4.12 ERA and 1.67 WHIP through 19.2 innings at Norfolk, so his success in the majors is a little surprising. For now, he appears to have solidified his spot in the Orioles' major-league plans.