Video: Watch Kyrie Irving and Jayson Tatum battle in 1-on-1 at practice

Danny Ainge was one of the many bystanders on hand on Monday afternoon as Jayson Tatum and Kyrie Irving went toe-to-toe in a 1-on-1 battle as the Celtics wrapped up practice. The two battled for about 10 minutes and here's a peek at some of the action, which saw Tatum coming out on top.