Xavier edges past Creighton 74-73
After both teams traded turnovers, Devin Brooks got a tip-in for a one-point Bluejays lead with seven seconds left, the first since midway through the second half.
Austin Chatman fouled Davis with 6.3 seconds remaining, Davis made both, and Chatman's final shot from 25 feet out hit the front of the rim to end it.
Chatman scored 18 points and James Milliken 17 for the Bluejays, whose last four losses have been by four points or less. Tenth-seeded Creighton (13-18, 4-14) will face seventh-seeded DePaul on Wednesday in the tournament.