Ray Allen led Boston with 14 points, including two 3-pointers, while Glen `Big Baby' Davis and Semih Erden both had 13 points.
But it was "The Diesel's Debut" that grabbed much of the attention.
The Celtics, who lost an epic Game 7 of the NBA finals to the Los Angeles Lakers, returned coach Doc Rivers, who considered retirement, as well as Allen and Paul Pierce - both of whom could have left via free agency.
