"After he exercises a little bit, he's still not 100 percent," Girardi said. "I don't know if he'll play the rest of the year. I'm not real sure."
Girardi penciled Romine into the Yankees' lineup on Tuesday, but he was scratched because he was still feeling post-concussion symptoms.
Outfielder Brett Gardner could also miss the rest of the season. Gardner has been shut down since suffering a left oblique strain on Sept. 13. Girardi said Gardner could begin doing light exercises soon, but he isn't doing much right now.
Last Sunday, Gardner said there might not be enough time remaining in the season for him to get healthy to return to the lineup.
Josh Vitale is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.