Siena 72, St. Bonaventure 70
Wright's bank layup, just before the buzzer, finished an improbable game in which two players fouled out and another went down with an injury.
Still, the Saints got over the top, beating previously undefeated St. Bonaventure, 72-70, on Tuesday evening.
Lavon Long scored a team-high 15 points and Brett Bisping added 13 off the bench.
The Bonnies were led by Youssou Ndoye, who led four players in double figures, with 16 points.