Paxton had allowed three runs on three hits (two HRs) in two-thirds of an inning. Chasen Bradford came into relieve Paxton.
Paxton’s start was bumped up a day, taking the place of Felix Hernandez, who was placed on the 10-day disabled list for a stiff lower back.
An extended absence of Paxton would be a blow for Seattle. He has 155 strikeouts this season, the fifth-most in the American League and the most by a Mariners pitcher before the All-Star break since Randy Johnson in 1998 (170).
Paxton made a career-high 24 starts and threw a career-high 136 IP in the majors last season