OAKLAND, Calif. — Brian Cashman said he’s thankful the injuries suffered late Thursday night by Gary Sanchez and Aaron Hicks don’t appear to be “catastrophic.”

But that doesn’t mean the Yankees, who already lost CC Sabathia do the disabled list this week, emerged unscathed.

Neither Sanchez (abductor) nor Hicks (left Achilles) were in Friday night’s lineup and Cashman said they were “day-to-day.”

But righthander Adam Warren, who hasn’t thrown since Tuesday, was placed on the 10-day disabled list with shoulder inflammation. Warren doesn’t think he’ll be down for any more than the 10 days. Rookie righthander Giovanny Gallegos, who took the loss in Thursday’s 8-7 loss to the A’s in 10 innings, was optioned to the minors.

Outfielder Mason Williams and catcher Kyle Higashioka were recalled from Triple-A Scranton/Wilkes-Barre. Williams started in centerfield Friday in place of Hicks.

“Hey, listen, it’s a grind,” Cashman said by phone of the sudden deluge of injuries. “And the outfield and bullpen have been taking the brunt of that grind of late.”

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The Yankees, after reaching their high-water mark of 15 games over .500 (38-23) with a victory Monday in Anaheim, had lost three straight entering Friday.

Hicks, who has played like an All-Star pretty much all season, particularly since Jacoby Ellsbury went to the DL May 25 with a concussion, was not in the clubhouse before Friday night’s game. But manager Joe Girardi said Hicks said of his injury, ‘it’s no worse than yesterday’ ” and that he feels OK.

Sanchez has been the club’s hottest hitter. Sanchez, who hurt himself sliding into second in the ninth inning Thursday, was 3-for-3 with two walks in the game. In his last seven games, Sanchez was 14-for-28 with five homers, 17 RBIs and five walks. He slugged 1.143 in the stretch.

Girardi said, “we actually feel pretty good about how” both players felt.

“Sanchy still has a little tightness but the good thing is neither one of them got worse,” Girardi continued. “Sometimes that’s what you’re concerned about after the adrenaline wears off.”

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Sanchez said Friday he had not undergone any tests but felt there had been improvement.

“I feel a little better, better than yesterday,” he said through his translator. “I’m day-to-day right now. I feel a little better today so we’ll take it from there.”

It’s been a week of bad news on the injury front for the Yankees, who also saw first baseman Greg Bird, out since May 2 with a bone bruise in his right ankle, pulled from his rehab assignment Thursday because of recurring discomfort in the ankle area.

He was evaluated by team physician Dr. Christopher Ahmad Friday and underwent a CT-scan and MRI, with neither test showing any new issues. Still, he’s being sent to see foot and ankle specialist Dr. Robert Anderson Tuesday in Charlotte, North Carolina, the same doctor who performed surgery on Derek Jeter’s broken left ankle in October 2012.

“Optimally you have all your guys healthy but that’s not how it works,” Cashman said. “So you reshuffle the deck and you compete. Fortunately, that’s what our guys are good at.”

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Injuries never occur at a good time but in this stretch, 20 games in 21 days, including this current string of 13 straight, it’s especially rough.

“This is nothing new, this is the life of a baseball player,” Girardi said. “It’s not like every team doesn’t go through this. This is the game . . . This is just part of it.”

Brett Gardner took the pragmatic approach as well.

“This game,” the outfielder said, “doesn’t stop for anybody.”