The A’s are staring at two big holes in their rotation

The A’s have made no announcement on Sunday’s starter after Brandon McCarthy was scratched, but expect right-hander A.J. Griffin to be called up to make his major league debut. Griffin was scratched from Sunday’s start for Triple-A Sacramento, the sure sign that he’ll be at the Coliseum on Sunday.

As the A’s try to rebound from Saturday’s draining 9-8 loss to the Giants, they face the big-picture reality that they must get by without their top two veteran starters for an unknown period — McCarthy and Bartolo Colon. Colon went on the D.L. on Saturday, as expected, with his strained oblique. He’ll miss a minimum of two starts, though indications are he is recovering well.

McCarthy tried playing catch before the game and shut it down. His right shoulder, which has been so problematic throughout his career and has already sent him to the D.L. once this season, is acting up yet again. “It’s been building to this over the past couple of days,” McCarthy said. “We’ve done MRIs. It’s nothing serious. For whatever reason, it just doesn’t recover like it’s supposed to. It’s not easy being honest with yourself — when (the shoulder) is OK and when it isn’t. I was hoping for a miracle, but playing catch, it just wasn’t there.” … Most frustrating for McCarthy and the A’s has to be the fact that he’s performed so well when healthy. He has won six straight decisions and carries a 2.54 ERA.

Expect McCarthy to be joining the D.L. soon. He said he hopes to return sometime around the All-Star break, so Griffin may get a chance to stick around for a bit if he impresses Sunday.

That’s all for now …

Joe Stiglich