What happened: Arrighetti allowed three runs in the first inning before being replaced for the second. The club attributed his departure to right foot nerve irritation.
Why it matters: His club entered Friday at 50-54, two games out of the division lead and 3.5 games from a wild-card spot. The early exit adds uncertainty to the rotation during a crowded playoff chase.
By the numbers: Arrighetti posted a 0.93 ERA over 29 innings in May, followed by a 9.00 ERA across 25 innings in June. He walked 10 batters over nine innings in his two starts before Friday.
What to watch: Watch for the next medical update and any change to his upcoming rotation turn.