With the second round underway, the NBA has graced us with their fourth and final commercial spot for the 2011 NBA Playoffs before the Finals. Watch as the official basketball of the NBA (this time voiced by John Slattery) recounts the hardships he faced during the epic seven-game series between the Celtics and Bulls in the 2009 Playoffs.

And in case you missed ‘em, here are the first three:
2011 NBA Playoffs Commercial – “Rock”
2011 NBA Playoffs Commercial – “Rebounds”
2011 NBA Playoffs Commercial – “.4″

What series are you most excited to watch in the second round?

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