“Compared to last year, he’s come a long, long way,” said Mike Nickeas, the Mets catcher who caught Mejia in Double-A and Triple-A and was called up on Thursday to start as his batterymate Saturday. “I think his off-speed stuff for strikes has been tremendous this year, and his last four or five outings have been phenomenal. His fastball is where it has been, only it’s more consistent to both sides of the plate. He’s done a terrific job.”
Source: MLB.com