KJ Simpson rattled in a tiebreaking jumper from the baseline with 2 seconds left, and 10th-seeded Colorado beat seventh-seeded Florida in a 102-100 thriller in the first round of the NCAA Tournament.

KJ Simpson had 23 points and 10 rebounds to lead Colorado to an 78-66 upset victory over No. 11 Tennessee.

Colorado knocked off No. 2 Arizona 79-63, matching the highest-ranked opponent ever beaten by the Buffaloes.

It was a 96-73 thumping of Georgetown, the program Ewing starred for in the 1980s and now coaches. “We didn't bring our ‘A’ game,” Ewing said. He was called for a flagrant-one foul when he took down Georgetown big man Timothy Ighoefe by the neck while Ighoefe was going up for what looked like an easy bucket. Walker became the 16th player in tournament history to shoot at least five 3s and make them all. By making the surprise trip to the tournament, Ewing alleviated some of the heat he was starting to feel back home.