Montes was removed from Friday's game against the Athletics in the fifth inning with an apparent injury, Ryan Divish of The Seattle Times reports.
Montes, playing in just his third MLB game, crashed hard into the outfield wall while trying to make a play on a Zack Gelof triple in the top of the fifth. While Montes got up and was walking around afterward, he was replaced in right field by Taylor Ward in between innings.