Rivera was playing centerfield in the bottom of the first inning and was seen going to the ground on his own during an infield pop.

Hall of Famer Mariano Rivera tore an Achilles tendon during the Yankees' annual Old-Timers' Day game on Saturday and needs surgery.

A #Yankees spokesperson confirmed that Mariano Rivera hurt his Achilles during the Old-Timers'Day game, as Roger Clemens told Suzyn Waldman. Severity unclear. Rivera met with trainers, but the team didn't have any info beyond that.