The fan of the game on Monday night may have been Bill Belichick, but he wasn't the only Boston sports figure cheering on the Bruins.

Celtics point guard Rajon Rondo, last seen playing against the Heat with one functioning arm, was at the TD Garden cheering for the Bruins. Check out some of his tweets below.

Rajon Rondo Cheers on Bruins at TD Garden During Game 5

Rajon Rondo Cheers on Bruins at TD Garden During Game 5

Rajon Rondo Cheers on Bruins at TD Garden During Game 5