When you follow the average or not-so-average professional athlete, a lot of advertising tends to be part of the program.

Tom Brady made the big move from Nike to Under Armour, David Ortiz has had a long run with Vitaminwater, but Celtics captain Paul Pierce may have lost out on a chance for a Gatorade endorsement.

Of course, when it comes to giving someone else Gatorade, Pierce is more than willing.

Check out the video of Pierce drinking some Gatorade at a news conference with Kevin Garnett. Look at Pierce’s facial expression after he takes a sip. Words are not even necessary.

Good thing Pierce has Spalding and Nike as sponsors.