Marcus Zegarowski is doubtful for No. 7 Creighton’s first game in the Big East Tournament because of a right knee (meniscus) injury. Zegarowski got hurt during Saturday’s 77-60 victory over Seton Hall, leaving the arena on crutches. He didn’t have crutches at practice Monday but walked with a limp. Crieghton coach Greg McDermott: “We haven’t played a lot with him off the floor. If we have to do it, obviously it’s going to be an adjustment.”