ABC’s NBA Sunday Showcase returns with a blockbuster matchup this weekend when the Miami Heat and LeBron James host the Chicago Bulls and Derrick Rose – in an Eastern Conference Finals rematch – at 3:30 p.m. ET. ESPN’s lead commentator team – Mike Breen and analyst Jeff Van Gundy – will call the game with reporter Lisa Salters. Kia NBA Countdown with Hall of Famer Magic Johnson and analysts Jon Barry, Michael Wilbon and Chris Broussard will preview the action at 3 p.m. Additionally, ESPN Radio will broadcast the game with coverage beginning at 2:30 p.m. Hall of Famers Jim Durham and Dr. Jack Ramsay will describe the action. Also, ESPN will televise a Sunday night contest when the defending champion Dallas Mavericks and Dirk Nowitzki host the San Antonio Spurs and Tim Duncan at 8 p.m. Dan Shulman will call the game – also available via ESPN3, ESPN Mobile TV and the WatchESPN app – with analyst Doris Burke.