CHAPEL HILL, S.C. -- Bambale Osby's layup with 21 seconds left put Maryland on top, and a Tyler Hansbrough miss at the buzzer helped Maryland shock the top-ranked North Carolina Tar Heels 82-80.

The game was tied with 43.4 seconds on the clock and Maryland had possession following its last timeout. The Terrapins then got the ball underneath to Osby, who nearly tripped but managed to finish with the left hand, tapping the ball in off the glass.

UNC had one last chance, but with 10.7 remaining Danny Green missed a tip-in and Wayne Ellington missed a driving shot as the ball bounced toward the bench, with several players falling on it before it rolled out of bounds. The Tar Heels got it back with 1.7 seconds left, but Hansbrough's three-point attempt hit off the rim as the horn sounded.

James Gist led the Terrapins (12-7, 2-2 ACC) with 22 points and 13 rebounds. Landon Milbourne chipped in with 14, while Greivis Vasquez and Osby added 12 each. Vasquez also dished out 11 assists and had six boards for Maryland, which has won six of its past seven games and was an 18-point underdog coming in.

Hansbrough had a team-high 17 points and 14 rebounds for North Carolina (18-1, 3-1 ACC), which barely escaped its contest against Georgia Tech on Wednesday, with an 83-82 decision. The Tar Heels couldn't avert disaster this time, however, and shot just 38 percent in the contest.

Ellington ended with 14 points as the Tar Heels fell four wins shy of the best start in school history. The 1985-86 squad started 21-0.