Celtics C Al Horford Rises for 1-Handed Jam over Knicks' Kristaps Porzingis

New York Knicks big man Kristaps Porzingis tried to meet Al Horford at the rim in the third quarter of Sunday's matinee at Madison Square Garden.

The Boston Celtics center made the 7'3" Latvian pay.

Horford's one-handed throwdown on Porzingis came minutes after he rocked the rim over Knicks rookie Ron Baker:

Boston took a 76-60 lead on the second slam.    

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