It was apparently a “freak accident” that led to Mariano Rivera’s injury during the Yankees Old Timer’s Day game, Andy Pettitte said during an appearance on WFAN on Saturday. At the

Hall of Famer Mariano Rivera tore an Achilles tendon while going after a flyball at the New York Yankees’ 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.