The second-ranked Arizona Wildcats were stunned Saturday in a 79-63 loss to Colorado at the CU Events Center.
Riding a nine-game winning streak that moved them up to No. 2 in the Associated Press Top 25 for the first time since November 2017, the Wildcats suffered their first loss since Jan. 25 against UCLA.
Arizona collapsed on both ends of the court in the second half. The Buffaloes had a 47-26 scoring advantage after halftime to earn their first win over a ranked opponent this season.
Tristan da Silva scored a game-high 19 points on 7-of-10 shooting.