Jimmy Butler broke Michael Jordan's Chicago Bulls record for most points in a half with an incredible 40 against the Toronto Raptors.
At half-time, the Bulls looked set for their fifth loss in their past six road games, trailing the Raptors by 12.
Butler had just two points after needing stitches to close a gash in his lip in the second quarter, but he erupted in the second half.
He scored 40 second-half points to lead the Bulls to a 115-113 comeback win, breaking the franchise record set by Jordan.
Butler's incredible performance was one point better than Jordan, who scored 39 second-half points against the Milwaukee Bucks on February 16, 1988.
Butler finished with 42 points, five assists, four rebounds, a steal and one block in 39 minutes as the Bulls moved to 20-12 this season.
Wilt Chamberlain holds the record for most points scored in one half with 59 on March 2, 1962.