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.

Williams allowed three runs in the Yankees' 5-3 defeat to the Astros on Friday, serving up a 2-run homer to Taylor Trammell in the 10th inning. In his past five appearances, Williams has given up eight runs in 4 2/3 innings. He has allowed 28 earned runs this season, more than he gave up during the past three seasons combined.

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