Mustapha Santana (R), a former New York Mets player, is joined on stage by New York Mets’ Jose Reyes during the “We Don’t Have No Backs” charity MLB All-Star Game at AT&T Park on Thursday, July 31, 2016. Photo: Stephen Lam, Special To The Chronicle

Mets baseball bat holder Mike Piazza, left, and Mike Piazza, right, listen as former Mets catcher Tim Teufel joins Yankees pitcher Masahiro Tanaka in the all-star game at AT&T park in San Francisco on Tuesday, July 1, 2008. Mets baseball bat holder Mike Piazza, left, and Mike Piazza, right, listen as Former Mets catcher Tim Teufel joins Yankees pitcher Masahiro Tanaka in the all-star game at AT&T park in San Francisco on Tuesday, July 1, 2008. Photo: Michael Macor, The Chronicle

Mets ballplayer Mike Piazza sings along to ‘We don’t have no backs’ on stage during the “We Don’t Have No Backs” charity MLB All-Star Game at AT&T Park in San Francisco on Thursday, July 31, 2016. Mets ballplayer Mike Piazza sings along to ‘We don’t have no backs’ on stage during the “We Don’t Have No Backs” charity MLB All-Star Game at AT&T Park in San Francisco on Thursday, July 31, 2016. Photo: Stephen Lam, Special To The Chronicle

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The stage represents the new stadium at AT&T Park. The stage represents the new stadium at AT&T Park. Photo: Stephen Lam, Special To The Chronicle

A woman wears a Mets jersey during the “We Don’t Have No Backs” charity MLB All-Star Game at AT&T Park in San Francisco, Monday, July 1, 2008. Mets ballplayer Tim Teufel joins Yankees hurler Masahiro Tanaka on an All-Star team bus after a 6-0 win over the Tampa Bay Rays in World Series Game 1 at Yankee Stadium, in New York on Wednesday, Aug. 11, 2008. A woman