PITTSBURGH (AP) -- Aaron Jackson scored on an in-bounds play with 22 seconds remaining and surprising Duquesne squandered a 19-point lead in the second half, then recovered to upset Xavier 93-91 behind Robert Mitchell's 26 points on Wednesday night.
Xavier (15-7, 5-3), the Atlantic 10 preseason favorite, trailed 69-50 and was down by 16 with eight minutes remaining, before going on a 23-7 run that seemed to deflate the underdog and inexperienced Dukes (8-11, 4-4). The Musketeers tied it at 91 on Derrick Brown's two free throws with 41 seconds remaining after trailing 91-82 with four minutes remaining.
But after Duquesne failed to score on five consecutive possessions, Jackson took the inbounds pass from Reggie Jackson under his own basket and laid it in to put Duquesne back on top.
After a timeout, Xavier's Drew Lavender missed a 3-pointer from the corner that would have won it. Xavier's Justin Cage rebounded but was tied up and the clock ran out before Xavier could get off a potential tying shot -- bringing the Dukes' reserve players, fans and students onto the floor to celebrate an unexpected victory over a team projected to reach the NCAA tournament.
Xavier coach Sean Miller, a former Pitt player, seemed as stunned as anyone by the finish, chasing an official off the court -- apparently to protest the lack of a foul call on the final sequence.
Gary Tucker added 17 and Scott Grote had 13 for Duquesne despite missing two key 3-pointers down the stretch that helped get Xavier back into the game. Justin Doellman had 23 points, Justin Cage had 17 points and 10 rebounds and Brandon Cole had 12 points and 10 rebounds for the Musketeers.
Duquesne is now 3-1 since first-year coach Ron Everhart, playing with a depleted roster following the shootings of five players in September, scrapped his offense and defense and went with a frantic, full-court pressure system that has forced 99 turnovers in the four games. Duquesne scored 30 points off Xavier's 21 turnovers.
Duquesne -- a 3-24 team a season ago -- has beaten Dayton, Temple and Xavier in the last eight days by averaging 94 points, the first time in school history it has beaten all three in same season. The Dukes have had losing records 19 of the last 20 seasons.