At the beggining he talked about changing his game plan, + agression to his groundstrokes. It seemd that it was working, as he played a good match against Top Murray in Bangkok, but after then he slumped through. In the A.O he was with a neck injury. Also confidence is a key factor on his gameWhat happened after USO for Simon? He's slumped through the hard court season since, which is traditionally his best surface.