It took a missed 3-point shot at the buzzer by Oklahoma's Steven Pledger to ensure a 71-68 Missouri win.
The No. 4 ranked Tigers, who were coming off an emotional home win over rival Kansas on Saturday, barely squeaked by the Sooners on Monday in Norman, Okla. The team was led offensively by senior guard Marcus Denmon, who scored 25 points, shooting 9-17 from the floor and playing all but one minute of the game.
Senior forward Ricardo Ratliffe also did his part, scoring 15 points, shooting a perfect 6-6 from the field and grabbing 10 rebounds to lead the Tigers on the glass.
Missouri (22-2, 9-2 Big 12) is back in action Saturday, when they'll host No. 6 Baylor at 12:30 p.m. in a clash of conference powerhouses. With the loss, Oklahoma fell to 13-10 overall and 3-8 in the Big 12.