ATLANTA (Ticker) -- After Luol Deng carried the load for Duke, J.J. Redick and Daniel Ewing came up with the decisive blows.
Deng scored a season-high 22 points and Redick and Ewing each nailed huge 3-pointers down the stretch as top-ranked Duke extended its winning streak to 15 games with an 82-74 Atlantic Coast Conference victory over No. 16 Georgia Tech.
Georgia Tech (16-4, 4-3 ACC) was poised to end a 14-game skid against Duke with one of its best teams in years and a boisterous sellout crowd behind it. But the Yellow Jackets had no matchup for Deng, a freshman who also grabbed 10 rebounds.
"That was Luol's best game," Duke coach Mike Krzyzewski said. "For a freshman to do that and get a double-double here was sensational."
Deng snapped a 68-68 tie by making the first of two foul shots with 3:13 to go. He missed the second, but the ball was tapped out to Redick, who used a nifty headfake against a defender before draining a 3-pointer.
B.J. Elder countered with a pair of free throws to slice the deficit to two points. Duke (18-1, 7-0) turned to Ewing on its next trip, and the athletic swingman sank a 3-pointer for a five-point edge.
"I thought Ewing's 3-pointer when it was 72-70 was one of the big shots of the game," Krzyzewski said.
Chris Duhon fed Shavlik Randolph for a dunk and a 77-70 cushion with 1:57 left, paving the way for the Blue Devils' eighth straight triumph at Alexander Memorial Coliseum.
Ewing complemented Deng's effort off the bench with 15 points as the reserves - who would be starters on virtually every other ACC team - shined. Shelden Williams added a double-double, fouling out with 15 points and 10 rebounds, as Duke held a 40-30 edge in points in the paint.
Georgia Tech led by as many as 11 points in the first half, but an ugly incident between Redick and Elder nearly led to a fight. The players were battling for a loose ball near the Yellow Jackets' bench and Redick took exception to Elder's physical effort by shoving him.
Robert Brooks came off the Tech bench to retaliate and was ejected after Ewing intervened. Ewing, Elder and Redick received technicals and Duke scored 11 straight points after play resumed for a 21-17 edge.
"I don't know," Georgia Tech coach Paul Hewitt said. "I think it's one of those things where had we gone on a run, people would have said that it sparked us, and if they go one a run, it sparks them. I'm not sure what effect that had."
Jarrett Jack led the Yellow Jackets with 19 points and Luke Schenscher added 18. But Elder, who poured in 36 points in Tuesday's win over Clemson, scored seven on 2-of-11 shooting before fouling out.
Tech stayed in the game by converting 21 turnovers into 20 points.