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.

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.

The New York Yankees' bullpen took another unexpected — and curious — twist over what was supposed to be a celebratory weekend.Hall of Fame closer Mariano Rivera reportedly tore his Achilles tendon during Saturday's Old-Timers' Day game