STILLWATER, Okla. — Freshman Jawun Evans had 22 points, eight assists and six rebounds to help Oklahoma State upset No. 3 Kansas 86-67 on Tuesday night.

The Cowboys beat Kansas in Stillwater for the third straight time and the fifth in seven years.

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Jeff Newberry scored 13 points and Jeffrey Carroll added 11 for the Cowboys, who had lost four straight. Oklahoma State shot 50 percent from the field, made 11 of 21 3-point attempts and outrebounded the Jayhawks 38-31.

Frank Mason III scored 14 points and Perry Ellis added 13 for Kansas (15-3, 4-2 Big 12), which has lost two of its past three and fell out of a tie for the Big 12 lead.

Oklahoma State made 23 of 26 free throws while Kansas made just 13 of 24.

The Cowboys (10-8, 2-4) nearly knocked off then-No. 2 Oklahoma six days earlier, but they missed a last-second shot and lost 74-72.