Matt Harvey knows who he isn’t anymore.
The fastball and slider he used to emasculate scores of major league hitters are gone, forever altered after undergoing Tommy John surgery, and another procedure for thoracic outlet syndrome.
So, if the former All-Star Game starter doesn’t begin trusting his secondary pitches, it will make it much easier for the Mets to determine which pitcher to remove from the rotation when left-hander Jason Vargas returns.
Vargas is expected to throw a minor league rehab assignment Sunday. He could be back in the majors as soon as the Mets’ final April series, and Harvey currently is the most likely candidate to lose his spot.