Chicago Bulls defeat Boston Celtics, 105-103

Paul Pierce predicted that defending their NBA title would be among the toughest tasks the Celtics ever face.

And that was before they lost their playoff opener, 105-103, in overtime to the Chicago Bulls yesterday at TD Banknorth Garden.

Though Pierce said the team will recover in Game 2 tomorrow, home-court advantage was squandered. Plus, the Bulls gained confidence and momentum, removing doubts about their lack of postseason experience.

Rookie guard Derrick Rose le...