Cooper Flagg collected 19 points and 10 rebounds, Kon Knueppel scored 17 points and No. 4 Duke’s stout defense carried the Blue Devils past visiting Pitt 76-47 in a matchup of two of the Atlantic Coast Conference’s top teams Tuesday night in Durham, N.C.Duke held Pitt to a miserable night on offense. The Panthers failed to score for the game’s final 7:58, resulting in a game-ending 18-0 run for the Blue Devils.Khaman Maluach added 11 points and eight rebounds for Duke (13-3, 5-0 ACC), which has nine straight wins. Duke’s starting backcourt chimed in with 23 points, 13 from Tyrese Proctor and 10 from Sion James. Proctor scored the game’s final 10 points.Cameron Corhen scored 11 points and pulled in seven rebounds for Pitt (12-3, 3-1), which shot 31 percent (18 of 58) from the field. That included 6-for-20 on 3-pointers.The Panthers, who are coached by former Duke player and assistant coach Jeff Capel, were denied pulling off a second consecutive road upset of Duke.Duke ended up shooting 50 percent from the field, helping it to overcome 14 turnovers.Duke’s lead grew to 17 points in the second half before the Panthers closed to within 58-47 on Brandin Cummings’ drive with less than eight minutes to play.The Blue Devils took a timeout and followed with an 8-0 run for the Blue Devils with Maluach and Flagg each scoring four points.