DURHAM, N.C. (AP) — Grayson Allen had 15 points and seven assists in his return from a one-game suspension for tripping an opponent, and No. 8 Duke routed Georgia Tech 110-57 on Wednesday night in coach Mike Krzyzewski’s final game before leaving the team to have back surgery. Jayson Tatum scored 19 points to lead the Blue Devils (13-2, 1-1 Atlantic Coast Conference), who had seven double-figure scorers in arguably their most complete performance of the season.