Pierce bet that he'd walk from his home to the local studios of his "Speak" show broadcasting gig for Fox in a bathrobe, a walk of close to 20 miles.

The Celtics were well on their way to taking care of business in Game 2 as they led by 20 points in the third quarter, but things went downhill fast. The Knicks ended the game on a 23-6 run and walked away with a win after Jalen Brunson hit a pair of clutch free throws.

Pierce was so dedicated to showing that he was a man of his word that his former Celtics teammate and fellow Basketball Hall of Famer Kevin Garnett appeared to come and check on him while driving by. After Garnett saw Pierce was OK, he just egged him on to keep going while Pierce chuckled: