MIAMI -- New York Mets fans began the year dreaming about a World Series closed out by Edwin Díaz.
For now, they're facing a potential nightmare.
In a startling scene, Díaz was taken off the field in a wheelchair after injuring his right knee celebrating Puerto Rico's victory over the Dominican Republic in the World Baseball Classic on Wednesday night.
There was no immediate word on how severely Díaz was hurt - the Mets said he will undergo more tests Thursday. But the way his teammates stood around him in shock didn't look encouraging.