Horford gives Harden too much space and he drains the 3 to give him 19 before the half

Harden proves hes Hard To Guarden with the nasty crossover

Darren Collison puts Cedi Osman on skates and drains the jumper.

Al Horford With the Game-Saving Block in the Celtics' Victory Over the Pistons

Reggie Bullock ties the game with 2.3 seconds left!