Youzhny v Hewitt

I find the odds interesting on this one given Hewitts superior record against Youzhny (6-1). In their last meeting last year Lleyton was 2.20. Arguably playing as well as ever, I thought he may have come up fav. Am I missing something? I dont think Youzhny is playing any better. Is it a fitness concern, 2nd week and 5 set match?