LAS VEGAS (AP) James Keefe capped a double-double by banking in a short jumper at the buzzer as ninth-seeded Stanford closed the game on a 16-1 run to shock eight-seeded Arizona State 71-70 in the Pac-12 Conference tournament opener on Thursday.

Stanford faces top-seeded and second-ranked Arizona on Thursday in the quarterfinals.

Spencer Jones made a 3-pointer with 37 seconds left to pull Stanford within 70-69 and the Cardinal elected not to foul. Stanford freshman star Harrison Ingram rebounded Jalen Graham's missed 10 footer with nine seconds left and weaved his way up court but had the ball stripped as the spun in the lane. Keefe picked up the loose ball , elevated and his floater, released with a half-second remaining, went off the backboard, the front of the rim and the backboard again before dropping through, giving Stanford an improbable win.