Arrieta is injured in his debut with Padres

Add new San Diego Padres pitcher Jake Arrieta to the disabled list after he left his start against the Colorado Rockies on Wednesday with a mild left hamstring strain.

Arrieta, 35, allowed five runs in 3.1 innings before exiting. His last pitch was a home run by Rockies catcher Dom Nunez. The right-hander said he felt a pinch in his hamstring when he landed on his track.

“It’s an unfortunate introduction to the group,” Arrieta said after the Padres’ 7-5 loss. “I feel bad about what happened. It’s not the way you want to start with your new group, especially in a situation to save a game in the series.”

Arrieta was hired Tuesday despite posting a 6.88 ERA with the Chicago Cubs this season. Padres pitching injuries required hiring, as the left-hander Matt strahm joined his teammates Yu darvish, Drew pomeranz, Dinelson Lamet and Chris paddack on the injured list. Strahm has swelling in his right knee. Arrieta does not believe his injury is serious.

The loss completed a “brutal” road trip for the Padres, who went 1-5 against Arizona and Colorado. The Rockies sealed the San Diego trip with a sweep.

“It was definitely not expected, but it is where we are,” Padres manager Jayce Tingler said. “It was a brutal road trip.

“We have to be better in every aspect of the game. It’s frustrating. We have the guys to do it.”

Despite the loss, the Padres remain 1.5 games above the Cincinnati Reds for the second wild card position. The Reds also lost a series to a team under .500, as the Cubs took two of three from them this week. It’s been a topic San Diego has tackled all season. They’re just 36-36 against teams under .500. Tingler was asked if he could explain the rarity considering it’s 11 games over .500 overall.

“I don’t know how, except that we’ve been inconsistent,” he said. “There’s no question about that … We haven’t been good on the road. We haven’t been good against some of the teams with records below .500.”

Not surprisingly, considering their injuries, the Padres are having trouble on the mound. They had the second-worst ERA in the National League in the past seven days heading into Wednesday’s game. After Arrieta left, the reliever Nabil Crismatt he gave up two runs that made the difference in the game.

“There is a sense of urgency,” Tingler said. “The guys are fighting. They are playing hard. Once we do a couple of things, we have a chance to get going.”

The Padres hope to do that at home, where they are 40-24 this season. They will host the Philadelphia Phillies and Los Angeles Dodgers starting this weekend, as both opponents have playoff aspirations. But that can be good. The Padres play better against better competition.

“We are a team that can really warm up at any moment,” said outfielder Will Myers. “We can get 10 wins in a year. We’ve shown it. If we want to focus on the negatives, those things will just keep piling up.”

Tingler was asked where the team’s mood was after the rough ride.

“Where we are?” he asked rhetorically. “Pissed off. Frustrated. Those could be good things.”