Paxton was hit by a line-drive on his left arm and promptly left Tuesday's game against the Athletics, Greg Johns of MLB.com reports.

EDGE Analysis

Paxton gave up a leadoff home run to Marcus Semien and was struck by the line drive on his throwing arm two batters later. The left-hander didn't wait to be examined by a trainer, walking off the field almost immediately. The severity of the injury is currently unknown as Felix Hernandez took the mound for the Mariners in relief.