What the Yankees do roster-wise on Saturday when first baseman Greg Bird is expected to be activated from the disabled list is up in the air.

When they sent pitcher Ryan Bollinger to Double-A Trenton after Wednesday’s desultory 12-10 loss to the Rangers, the Yankees had twelve pitchers. They will not go below that number, so the move could be first baseman Tyler Austin to Triple-A Scranton/Wilkes-Barre, even though the right-handed hitter has eight homers and 23 RBIs in 28 games.

Neil Walker’s ability to play multiple infield positions likely gives him the edge over Austin, who has minor league options.

Bird went 1-for-5 with an RBI on Thursday for SWB against Pawtucket. In 12 minor league games, Bird is hitting .205 (8-for-39) with three homers and eight RBIs.

With Bird expected to be activated Saturday, it’s possible he won’t play for SWB on Friday night.

The Yankees hope to perform better Friday night against the Angels at Yankee Stadium than they did last Friday in Kansas City after a second nightmarish travel problem.

After getting rained out in Washington on Wednesday, May 16, the Yankees endured a 15-hour flight delay and didn’t get to Kansas City until noon on Thursday, which was a day off. The next night, they lost to the Royals, 5-2.

Following Wednesday’s loss in Arlington, Texas, the Yankees’ plane took off but had to turn around and return to DFW Airport because of mechanical issues. The Yankees didn’t get home until 8 a.m., and like last week were off on Thursday.

The Angels, however, are a lot better than the Royals.