Brennaman was a part of Fox Sports' #2 baseball broadcast team from the beginning of Fox's involvement in Major League Baseball in 1996 until 2015. He has teamed with Bob Brenly, Steve Lyons, Joe Girardi, and Eric Karros. In this capacity, he called play-by-play for numerous postseason games from 1996 until 2006. Brennaman was notably, on the call for the controversial "Steve Bartman incident" during Game 6 of the 2003 National League Championship Series between the Chicago Cubs and Florida Marlins From 2007 to 2013, the #2 team was not given any postseason assignments due to Fox not holding the rights to any concurrent postseason series.