Tennis elbow is almost always the result of injury from repeated action, such as swinging a tennis racquet or, in Stanton’s case, a baseball bat, said Dr. Guillem Gonzalez-Lomas, an orthopedic surgeon at New York University Langone Health.

The New York Yankees seem likely to be without a five-time All-Star for an extended period and could turn to this player as a substitute.

An early litany of injuries, headlined by designated hitter Giancarlo Stanton’s elbow ailments, could derail the New York Yankees’ season before it even begins. Stanton is questionable for Opening Day with elbow discomfort.