By STEVE MEGARGEE
AP Sports Writer
MILWAUKEE (AP) — Olivier-Maxence Prosper tipped in a putback with 1.6 seconds left and No. 11 Marquette edged No. 16 Xavier 69-68 to extend its Big East lead. Marquette has a 1 1/2-game lead over Xavier, Providence and Creighton. Marquette got 17 points from Stevie Mitchell, 15 from Tyler Kolek and 14 from Oso Ighodaro. Xavier guard Souley Boum fought through a sprained ankle to score 24 points.
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