It was a heartbreaker for the Raptors Jan. 16 at the Air Canada Centre.
They trailed by 19 points in the third quarter, but they fought back and tied the Bulls at the end of regulation.
With time ticking down in OT and the score still tied, Luol Deng drained one with less than four seconds left on the clock to give Chicago the lead.
Jose Calderon had a chance to win it for the Raptors but his three-point attempt clanged off the rim and the Bulls hung on for a 107-105 victory.
Carlos Boozer led the winners with 36 points and 12 rebounds.
Alan Anderson scored 27 for the home team, making four of nine shots from three-point range, while Kyle Lowry added 24 points, seven assists and five rebounds.