Tanaka (concussion) rode a stationary bike at Yankee Stadium on Monday, Lindsey Adler of The Athletic reports.

EDGE Analysis

Things are going just about as well as they could be for Tanaka after he was struck in the head by a Giancarlo Stanton line drive during live batting practice Saturday. He was diagnosed with a mild concussion but was released from the hospital that evening and was already showing no symptoms the day after the incident. He'll still have to clear concussion protocol before taking the field, but it's possible he winds up not missing any time to start the season.