Kwamain Mitchell scored 22 points, including three big 3-pointers, and Saint Louis rode its gritty defense to a 61-54 victory over Memphis on Friday night in a West Regional second-round game.
Mitchell closed the first half by banking in a 3, then nailed two others to help the ninth-seeded Billikens (26-7) overturn an eight-point second-half deficit. They'll move on to play the winner of LIU Brooklyn and top-seeded Michigan State on Sunday.
Brian Conklin added 16 points, including five free throws in the final minute to salt the game away.
Will Barton had 16 points for the eighth-seeded Tigers (26-9), who had won 20 of their last 23 games.