Top seeds Gonzaga, Arizona and Kansas are in the NCAA Sweet 16.

Coaching longevity is a rarity in college basketball’s top tier.

Arthur Kaluma scored 17 points and keyed an overwhelming blitz that sent Creighton into the Big East championship game with a stunning 85-58 blowout of No. 11 Providence in the semifinals.

Jared Bynum had 27 points, including a key 3-pointer to help 11th-ranked Providence hold off Xavier 99-92 in triple overtime.

Collin Gillespie had five 3-pointers and a career-high 33 points, including a key 3 with 23 seconds left, and 10th-ranked Villanova held on to beat eighth-ranked Providence 89-84.

(AP Photo/Stew Milne)David Duke made a tiebreaking tip-in with 2.8 seconds left on Saturday and Providence held on after blowing a 20-point lead to beat No. Duke and Nate Watson scored 20 points apiece, and Noah Horchler had 10 points and 13 rebounds for Providence (13-12, 9-10 Big East). PC led 38-18 in the first before Villanova scored the first 11 points of the second. He joined Gillespie on the bench for the second half, wearing a boot. SECOND HALF WOESProvidence took an 11-point lead into halftime in its last game, against St. John’s on Wednesday.

Zegarowski, Jefferson and Ballock combined for 52 of the Bluejays’ points. Creighton led by as many as 13 with about seven minutes left in the second half. Creighton inbounded quickly, and Zegarowski pushed the ball up the floor and found the trailing Bishop for the dunk. Providence had just one turnover in the opening nine minutes of the half, but gave it away over the final 11 minutes. But it was a positive sign to see Jefferson, Zegarowski and Ballock assertive while still getting their teammates involved.