Tayshaun Prince and Chauncey Billups stepped up at just the right time and the Pistons are on the verge of another series sweep.

Prince scored 23 points and Billups added 21, and the Pistons rallied from a 19-point deficit to beat the Bulls 81-74 on Thursday night in Game 3 of the Eastern Conference semifinals.

The Pistons, who swept Orlando in the first round, will try to wrap up this one Sunday at the United Center.