Heaney left his Saturday outing due to left shoulder soreness, and the Angels will update his status Sunday.
Heaney's recent return from Tommy John surgery rehab has been marred by allowing an excessive amount of home runs (12 in 21.2 innings, including one Saturday). Perhaps this issue has lingered and contributed to his struggles, though we'll know more as reports come out on when he started to feel the discomfort. The silver lining is that the reported injury isn't in his pitching elbow, but the increased exertion of his first major-league innings since last April might be a factor.