Celtics vs. Warriors live stream: Watch NBA game online originally appeared on nbcsportsboston.com The Boston Celtics enter Tuesday's much-anticipated matchup with the Golden State Warriors with five losses in six games following the NBA All-Star break, but all of the negativity could begin to dissipate with a statement win over the defending champions. The Celtics actually have reason to be confident at Oracle Arena. Boston has beaten Golden State on its home floor twice in the last three seasons, including a 13-point win in March of 2017.