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Jake Arrieta got clobbered by the Colorado Rockies and left early with a left hamstring injury in his San Diego Padres debut Wednesday.

C.J. Cron had two hits and three RBIs and Trevor Story homered for the Rockies, who won 7-5 after scoring five runs in 3? innings against Arrieta before he departed with an injured left hamstring.

Arrieta (5-12) signed with the Padres on Monday, four days after the Chicago Cubs released him

. He allowed seven hits against the Rockies and saw his ERA rise to 7.13 on Dom Núnez’s solo homer before grabbing his left hamstring and exiting the game.

The 2015 NL Cy Young Award winner said he felt the hamstring when he landed but thinks the injury is minor and shouldn’t miss much time.

Padres starting pitcher Jake Arrieta holds his left hamstring after giving up a solo home run to the Rockies' Dom Nunez in the fourth inning Wednesday in Denver. Arrieta, who was making his first start for the Padres, was forced to leave the game. The Rockies won 7-5.
Padres starting pitcher Jake Arrieta holds his left hamstring after giving up a solo home run to the Rockies’ Dom Nunez in the fourth inning Wednesday in Denver. Arrieta, who was making his first start for the Padres, was forced to leave the game. The Rockies won 7-5.

“I’ve had two of these in the past that were significantly worse than this one,” Arrieta said. “Testing the strength with the trainers postgame, all the tests were good. Strength is at a pretty high level, which was something that wasn’t the case with the two previous hamstrings that I had, and I came back pretty quick from those two.”

Arrieta was signed to help bolster a rotation hit hard by injuries, and he was planning on pitching deeper into the game before the hamstring flared up.

“Felt great, felt really good,” said Arrieta, who also singled and scored a run. “More than capable of going upwards of 100 pitches. That was the game plan going into the start. Would have loved to give the team at least two more innings.”

Wil Myers homered twice for the slumping Padres, who have lost seven of eight but still lead the Cincinnati Reds by 11/2 games for the second NL wild-card spot.

“The standings are what they are, but the standings will be different in a month and a half from now,” Myers said.

The Padres suffered their seventh straight loss at Coors Field.

“We haven’t been great on the road, we haven’t been good against some of the teams with below .500 records,” manager Jayce Tingler said. “This place is a little bit different. It’s extremely tough to win here.”

The Rockies took a 3-0 lead in the first on Cron’s two-run double and Ryan McMahon’s single. Myers hit his first homer, a two-run shot, in the second, and Manny Machado drove in Arrieta in the third to tie it.

Myers’ 15th homer in the fourth evened it again before Núnez’s shot.

Story’s 16th home run of the season, a two-run shot in the fifth, gave Colorado a three-run cushion.

Ben Bowden (2-2) allowed one run in an inning and Daniel Bard, the fifth Rockies reliever in the game, pitched the ninth for his 20th save in 26 chances.