Rangers manager Bruce Bochy said Gray was lifted because he had numbness in his arm after he was hit. But he added that X-rays were negative and he expects Gray to make his next start.
There were no outs in the bottom of the third when Houston catcher Yainer Diaz hit a comebacker that bounced off Gray's elbow.
Gray shook his arm and winced right after being hit and before Bochy and a trainer came to the mound to check on him. After being checked out by the trainer and wiggling his fingers, he threw a couple of warmup pitches.
He soon stopped throwing and talked to the trainer for a bit longer before leaving the game.
Gray was replaced by Cole Ragans with the Rangers leading 2-0.
The Associated Press contributed to this report.