SEATTLE (AP) — James Paxton and three relievers combined on a four-hitter to help the Seattle Mariners beat the Colorado Rockies 5-0 on Wednesday night.

Paxton (4-0), activated off the disabled list earlier in the day, retired 16 of the first 17 hitters he faced, allowing only a two-out infield single in the third inning.

Making his first start since May 2, Paxton struck out Pat Valaika to open the sixth, but then allowed consecutive singles to Tony Wolters and Charlie Blackmon, ending his 74-pitch outing. He had been sidelined with a left forearm strain. He struck out six and walked one.

Steve Cishek retired all five hitters he faced and James Pazos pitched the eighth. Nick Vincent allowed a single in the ninth, to finish the four-hit shutout.

Rockies rookie Antonio Senzatela (7-2) allowed four runs on five hits with seven strikeouts and two walks in five innings, losing for just the second time in 11 starts.