Yarbrough pitched three innings, giving up one run on four hits with three strikeouts and two walks in a no-decision against the Orioles on Monday.
Yarbrough entered the game after Ryne Stanek pitched two scoreless innings as an opener. The left-hander has been on an impressive run lately with a 24:3 K:BB in his last 28.2 innings. Although it's unclear if Yarbrough will be the starter or follow an opener, he is expected to pitch Sunday against the Yankees at Tropicana Field.