Chicago White Sox right-hander Michael Kopech exited Sunday's game against the Texas Rangers with an injury after throwing just 13 pitches in the first inning.
Kopech, who is 2-2 with a 1.94 ERA, was checked on by the training staff with a full count and two outs against Adolis Garcia. He threw a warm-up pitch before spiking the baseball in frustration and walking to the dugout to applause from the fans.
The White Sox provided no immediate word on the injury.
Reynaldo Lopez replaced Kopech and struck out Garcia.