BOSTON -- Already without Mookie Betts (left foot inflammation), the Red Sox lost another star hitter in Tuesday's 7-6, 15-inning loss to the Giants when DH J.D. Martinez exited with tightness in his left groin in the bottom of the sixth inning.

And the man who pinch-hit for Martinez -- infielder Sam Travis -- didn’t stay in the game for long.

Travis sliced a triple down the line in right that went off the glove of Giants right fielder Austin Slater. The relay throw to third by shortstop Brandon Crawford hit Travis in the side of the head.

Clearly shaken up, Travis was taken out of the game.

"Sam is OK. He’s just going through the concussion protocol," manager Alex Cora said of Travis' status after the game. "J.D., just tightness in his left groin. We’ll see how he feels tomorrow. Most likely we’ll stay away from him."