PHOTO: Paul Pierce rocks Celtics jacket to bid Derek Jeter farewell at Fenway Park

Once a Celtic, always a Celtic - that's true for Paul Pierce, even though the small forward plays for the Washington Wizards now.

Case in point: on Sunday, Pierce joined a throng of iconic Bostonian sports legends at Fenway Park to bid now-retired New York Yankees shortstop Derek Jeter farewell at his last major-league game.

Jeter smacked a single in his last at-bat to finish with 3,465 career hits.