Jose Quintana has been diagnosed with a "small stress fracture" to his fifth rib, according to the New York Mets.

The left-hander exited his appearance on Sunday with left-side tightness.

Quintana had been scheduled to leave the Mets after his outing and join the Colombian World Baseball Classic team. Instead, he's withdrawn from the tournament and will head to New York for more imaging on the injury.

He signed a two-year deal with the Mets this offseason.