Arrieta exited Wednesday's start against the Rockies with a mild left hamstring strain, AJ Cassavell of MLB.com reports.

EDGE Analysis

A trip to the injured list seems like a decent possibility for the righty, who allowed five runs on seven hits through 3.1 innings in his Padres debut. It's also possible Arrieta gets released, as he showed nothing before the injury to suggest he can solve San Diego's starting pitching woes. An update on his condition and roster status should become available in the next couple days.