Bill Belichick's presence at Celtics comeback win fires up fans

New England Patriots coach Bill Belichick took a break from his draft preparation to take in the Boston Celtics' thrilling comeback win Wednesday night over the Miami Heat. The Celtics charged back from a 26-point deficit and at one point, Belichick was shown on the videoboard above the court.

The Celtics' comeback was the largest in the NBA this season.

In football, Belichick often talks about the importance of playing the full 60 minutes. In the NBA, it's the full 48, which was the story at the TD Garden in front of a smiling Belichick.