LeBron James knows all-too well the Cleveland Cavaliers must win on Wednesday in the NBA Finals if they hope to make one of the greatest fightbacks in 70 years of championship history. Defending champion Golden State, which set an NBA record with 73 regular-season wins, has seized a 2-0 lead over the Cavaliers in the best-of-seven series, winning twice at home by blowout margins to capture momentum. "It's a do-or-die game for us," James said Tuesday.