Legendary New York Yankees closer Mariano Rivera tore one of his Achilles tendons during the club's 77th Old-Timers' Day game on Saturday, his agent Fernando Cuza confirmed to The Athletic. Rivera will undergo surgery this upoming week.

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.

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