Tony Clark appeared in Thursday’s doubleheader wearing No. 52, changing from 00, explaining the former belonged to mascot Mr. Met. “A lot of kids have expressed their opinion that there’s only one double-zero in their heart,” Clark said. That may be true today but a uniform number is a recent development for the largeheaded one, who represented for years without one. Clark in the meantime just keeps on making history: He was the first Met player to wear 00 and now, the first to wear 52.

Jeremy Griffiths also made his major league debut Thursday, wearing the dreaded No. 46.