Georges Niang had 20 of his 23 points in the second half and No. 17 Iowa State rallied from a 21-point deficit to stun No. 15 Oklahoma 77-70 on Monday night and snap a two-game losing streak.

Monte Morris had 19 points for the Cyclones (21-8, 11-6 Big 12), who maintained their shot at a share of the conference title following one of the wilder league games in years.

Oklahoma raced to a 19-point halftime lead. But Iowa State score 22 straight points in just over 5 minutes and outscored the Sooners 59-33 in the second half.

Buddy Hield had 26 points for the Sooners (20-9, 11-6), who shot just 32 percent in the second half in losing for just the second time in 10 games.