The Iowa State Cyclones return to Big-12 play at home tonight against Kansas State. The Cyclones entered the national rankings after a win over Kansas but coach Larry Eustachy says his team cannot afford a letdown.K-State coach Tom Asbury says the Cyclones are vastly improved from last year and the first matchup was proof of that.Asbury says while the Wildcats have been struggling, they have a chance to improve.