D-backs not worried after Gallen (shoulder), Perdomo (ankle) exit Mexico City Series opener

MEXICO CITY -- A pair of Diamondbacks exited with injuries in the opener of the MLB World Tour: Mexico City Series, a 6-4 loss at Estadio Alfredo Harp Helú. Right-hander Zac Gallen left his start with a right shoulder contusion, sustained on a comebacker in the third inning, while shortstop Geraldo Perdomo suffered a sprain when he twisted his left ankle in the top of the seventh.

“[Gallen] had his shirt off and he had a big seam mark there,” manager Torey Lovullo said postgame. “It impacted his shoulder in a good spot. I think it’s going to get really sore, like a charley horse of some sort. We’re going to treat him up and continue to get him into his throwing program and his routine as fast as possible.

“Perdomo, much of the same. If he doesn’t start tomorrow, he should be available at some point off the bench.”

Gallen said he counted six to seven seams from the baseball on his shoulder when he finally took a look at it.

The 30-year-old was in control early on, opening by retiring the first seven batters he faced against the Padres. He opened with efficiency and command, striking out both Xander Bogaerts and Gavin Sheets to close out a clean second inning.

But the Padres broke through for their first hit in the third when Freddy Fermin lined a ball to the right side that deflected off Gallen’s arm for an infield single. The ball was tracked at 92.3 mph off the bat. After a brief mound visit, Gallen stayed in the game, threw a couple of warmup pitches, and quickly regained rhythm.

“When it was coming back, I didn't think it would be as close as it was,” Gallen said. “I kind of knew that … just right from the get-go, you can tell the ones that are going to linger a little bit. The adrenaline got me through the inning.”

He went on to retire the next batter, Jake Cronenworth, on a groundout before finishing his outing with another strikeout, getting Ramón Laureano to chase a 90.1 mph cutter down in the zone.

“He made a big statement by staying in the game, but then when he came back down underneath the tunnel and into the dugout, clubhouse area, the shoulder started to tighten up on him,” Lovullo said. “It just made no sense for us to put him back out there in that environment.”

Gallen completed three innings of one-hit ball on 49 pitches before handing things over to Brandon Pfaadt to begin the fourth.

Later in the game, in the seventh inning, a high chopper from Ty France took an awkward hop as it headed toward Perdomo at shortstop. Perdomo appeared uncomfortable as he handled the play and made the throw to Ildemaro Vargas before being removed. He is considered day to day, the team announced.

“I didn’t expect the ball to take off that hard,” said Perdomo, who was still limping in the clubhouse postgame. “When I put my left foot back, I felt it a little bit twisted, and [when I] put more [weight on it], it felt [worse].”