Arrieta was placed on the 10-day injured list with a left hamstring strain Friday, retroactive to Aug. 19.

EDGE Analysis

Arrieta suffered a mild left hamstring strain in Wednesday's start against Colorado and will miss at least one turn through the rotation. The right-hander struggled in the appearance, as he allowed five runs on seven hits and a walk while striking out three in 3.1 innings, so he isn't guaranteed a spot in the Padres' rotation when he returns to full health.