Oklahoma vs. Iowa State: Live Score, Highlights and Reaction

The No. 1 ranking in college basketball remains a rash that keeps getting passed around. Oklahoma is the latest top team to fall, losing 82-77 at No. 19 Iowa State on Monday night.

The Cyclones (14-4, 3-3 Big 12) became the fifth team to knock off a No. 1 school this season, the third to do so in the state of Iowa. Northern Iowa beat North Carolina in November, while Iowa downed Michigan State in late December.

ISU avenged an 87-83 loss at Oklahoma on Jan. 2, getting 22 points from Georges Niang and 20 apiece from Abdel Nader and Monte Morris. Morris' leaner with 19.9 seconds left gave the Cyclones the lead for good at 77-75 with 19.9 seconds left.

Oklahoma (15-2, 4-2) got 27 points from Buddy Hield and a career-high 26 from Isaiah Cousins. The Sooners made 17 three-pointers but were 11-of-34 on two-point shots.

This marks Iowa State's first win over a No. 1 team since 1957, when it downed Kansas. Scroll down for all of our real-time updates, analysis, statistics, tweets, pictures and anything else worth noting from Hilton Coliseum in Ames, Iowa.

Follow Brian J. Pedersen on Twitter at @realBJP.