NORMAN, Okla. (AP) — Iowa State coach Matt Campbell saw an opportunity to seize a win that would boost the Cyclones' chances of reaching the Big 12 title game, so he put everything on quarterback Brock Purdy.

His gamble failed. Parnell Motley intercepted Purdy's two-point conversion pass with 24 seconds left, and No. 9 Oklahoma held off Iowa State 42-41 on Saturday night. And now, Iowa State's conference title hopes are bleak.

Campbell went for the victory on the two-point try after Charlie Kolar caught a 13-yard touchdown pass to pull the Cyclones — down 42-21 in the second half — within one....