Blevins slipped stepping off a curb and re-fractured the distal radial bone in his left arm on Monday. His surgery is set for next week in Boston.
According to ESPN NY's Adam Rubin, the Mets knew about Blevins' incident, but did not know the extent of the injury when they acquired LHP Eric O’Flaherty from the A's on Tuesday (Aug. 6).
Blevins, who was placed on the disabled list in April after he was struck by a line drive, was cleared to begin throwing again last Thursday (July 30).
Blevins pitched five scoreless innings in seven appearances before going on the DL.