Noah Syndergaard's MRI clean

NEW YORK -- An MRI of New York Mets top prospect Noah Syndergaard's right forearm came back clean, general manager Sandy Alderson said Tuesday afternoon.

Syndergaard, a right-hander with Triple-A Las Vegas, had flown to New York to be examined by team doctors. He preliminarily had been diagnosed with a flexor pronator strain, which can be a precursor to Tommy John surgery.

"Based on what I knew from Las Vegas, I was hopeful this would be the outcome," Alderson said.

Alderson said doctors have prescribed shoulder-strengthening exercises.

"Hopefully this is a short-term disablement for him over the next few days," Alderson said.

Syndergaard, 21, is 5-2 with a 4.02 ERA in 10 starts with Las Vegas this season. He last pitched Wednesday.

He was acquired from the Toronto Blue Jays with catcher Travis d'Arnaud and minor league outfielder Wuilmer Becerra for knuckleballer R.A. Dickey on Dec. 17, 2012.