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.

Mariano Rivera was hurt playing center field during the Yankees’ Old-Timers’ Day Game on Saturday and former teammate Roger Clemens said baseball’s career saves leader sustained an

In his lone at-bat, Rivera singled off former teammate Andy Pettitte and easily ran to first base. During an at-bat by Willie Randolph, Rivera took a step and fell to the ground in shallow center field behind second base.