Pierce was on ESPN's "NBA Countdown" on Wednesday night when he explained he was not actually injured that night — he just had to go to the bathroom.
"I have a confession to make," Pierce said. "I just had to go to the bathroom."
He then added, "Something went down, I had to go to the bathroom."
Matt Barnes was out on a date at the Arclight movie theater in Hollywood when the paparazzi told him the story, which blew Barnes away.
"I never that," Barnes said, after hearing what Pierce said. "I would have slid my ass all the way back to the locker room."
The photogs also asked Barnes about his thoughts on this year's NBA Finals and whether he thought Drake was helping or hurting the Toronto Raptors with his over-the-top antics.