NEW YORK (AP) Isaiah Whitehead had 24 points and 12 rebounds, Khadeen Carrington scored 27 and Seton Hall ran off the final eight points for an 81-73 victory over pesky Creighton in the Big East Tournament quarterfinals Thursday night. Carrington put the third-seeded Pirates (23-8) ahead for good with 50 seconds remaining, and Whitehead made several big plays down the stretch before sinking the clinching free throws. Seton Hall will face fifth-ranked and second-seeded Xavier, a 90-72 winner over Marquette, in the semifinals Friday night. Cole Huff had a career-high 35 points for the sixth-seeded Bluejays (18-14), who have lost five of six. The only victory during that stretch came at home against last-place St. John’s. Huff, a transfer from Nevada, shot 7 for 11 from 3-point range to keep Creighton close in a matchup of teams that exceeded preseason expectations in the Big East. He also grabbed nine rebounds.