Oklahoma State Cowboys players react from the bench late in the game against the Kansas Jayhawks at Gallagher-Iba Arena on February 20, 2013 in Stillwater, Oklahoma. Kansas won 68-67 in two overtimes.
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AMES, Iowa (AP) -- Senior Will Clyburn scored 20 points and Iowa State beat No. 13 Oklahoma State 87-76 on Wednesday night to bolster its NCAA tournament hopes.
Georges Niang added 18 points for the Cyclones (20-10, 10-7 Big 12), who notched just their second victory over a ranked opponent.
Oklahoma State trailed by as many as 15 points, but Marcus Smart's reverse dunk made it 70-68 with 4:28 left. Clyburn answered with a 3 and Tyrus McGee's 3 a minute later put the Cyclones ahead 78-68.
Smart was brilliant for Oklahoma State (22-7, 12-5), scoring 24 points with eight rebounds and five steals. But it wasn't enough as the Cowboys lost for just the second time in 12 games.
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