Paul Pierce Admits He Needed Wheelchair in 2008 NBA Finals tobr Use the Bathroom 'The Truth' has finally admitted to his bathroom emergency. Pierce exited Game 1 of the 2008 NBA Finals with an apparent serious br leg injury. He later returned to the game to lead the br Boston Celtics to a 98-88 victory over br the Los Angeles Lakers. On ESPN's 'NBA Countdown' before NBA Finals Game 3 on Wednesday, Pierce came clean about br the injury. Paul Pierce, via ESPN Pierce was then asked by Chauncey Billups why he needed the wheelchair to use the bathroom. Paul Pierce, via ESPN Pierce's Celtics defeated the Lakers 4-2 in the 2008 NBA Finals.