He made a throwing error that led to a run scored against him.
Mejia had surgery last August to remove a bone spur from his right elbow.
"I feel better, I feel good right now,” Mejia said after Wednesday's start (ESPN NY, Mar. 5). “Everything is fine.”
Mejia is competing to be in the team's starting rotation, though he could also be added to the Opening Day bullpen in the event the final slot goes to John Lannan or Daisuke Matsuzaka.