Top prospect Zack Wheeler told trainers on Monday about soreness in his right clavicle and is being dispatched to New York for further examination, assistant GM John Ricco said.
Manager Terry Collins said the initial belief is the injury in the front of the shoulder is not serious and Wheeler will only need to miss one Triple-A start.
Ricco said Wheeler already has been examined by a doctor in Las Vegas, but out of an abundance of caution given the importance of Wheeler to the organization, Mets doctors will take a firsthand look.
Wheeler, in his third straight strong start, limited Albuquerque to two runs in 7 1/3 innings Saturday. He has a 1.35 ERA over his past three starts.
"He's going to most likely miss his next start," Ricco said. "It was nothing that happened during the last outing. It was something that he felt a couple of days after. It's near his right clavicle. That's all I have right now until we have a doctor see him tomorrow. I think we're being a little bit conservative given who it is."
Wheeler joins top catching prospect Travis d'Arnaud as a Las Vegas player on the shelf and with an appointment to be examined by team doctors. D'Arnaud, who suffered a left foot fracture four weeks ago, is scheduled for a Friday exam with team doctors and hopes to shed a walking boot.