Costas will do the play-by-play of the American League Division Series between the Cleveland Indians and New York Yankees, which begins Tuesday at Yankee Stadium (6:37 p.m. St. Louis time). He'll work with analyst Ron Darling and reporter Lauren Shehadi.
Costas was host of TBS' coverage of last year's National League Championship Series last season, then called regular-season games this year for TBS and MLB Network
He has done play-by-play for a handful of postseason games in recent years but now he will be calling a full series for the first time since 2000, when he was at NBC and did the Yankees-Mariners matchup in the American League Championship Series.