TNT sideline reporter Craig Sager, who has undergone extensive treatment for leukemia in recent years, will join ESPN's Doris Burke on the sidelines for Thursday night's Game 6 of the NBA Finals.

In an agreement between TNT and ESPN, Sager will work his first NBA Finals game.

Sager has been with Turner for more than two decades.  And he will also join NBC's coverage of the Olympic men's and women's basketball tournaments later this summer.