NEW YORK -- Yankees catcher Austin Romine was sent for a precautionary MRI on his left hamstring -- the results of which were negative -- and right-hander Giovanny Gallegos was optioned to Triple-A following the Yankees' 11-0 loss to the Red Sox on Saturday.
Kyle Higashioka replaced Romine, who went 0-for-1 with a walk, to begin the seventh.
Romine is currently listed as day to day, but if the injury proves serious enough to keep him out of the lineup for more than a few games, the Yankees might need to explore outside options with regular catcher Gary Sanchez already on the 10-day disabled list due to a right groin strain.
The most likely candidates within the Yankees' Minor League system would be either Francisco Diaz or Wilkin Castillo from Triple-A Scranton/Wilkes-Barre.
Diaz has hit a combined .302 with 20 RBIs this season in 21 games across three levels; he was promoted to Scranton/Wilkes-Barre on Monday.
Castillo, meanwhile, has slashed .244/.277/.333 in 13 games at Triple-A this year. He has big league experience, but hasn't played in a Major League game since 2009 with the Reds.
The Bombers' other options within the farm system include Chace Numata and Jorge Saez from Double-A Trenton.
Before allowing three runs on Saturday, Gallegos had not given up a run in two previous outings for the Yankees this season.