Have a look at this piece written by Andy Murray http://www.bbc.co.uk/sport/0/tennis/23229819 and look out for the things other than his technical and tactical ability that have contributed to his success. It’s apparent how much difference other factors have made to him playing so well over the past couple of years. As well as getting himself fitter physically he acknowledges the emotional support of family and the pressure caused by the environment and the circumstances. He therefore acknowledges the mental factor in dealing with that pressure.
Look out too for the focus as he came out to serve for what proved to be the final time. The focus was not on winning, but where he was going to put his first serve.
See how well you can get your focus on those performance inputs and how much you can maximise your technical and tactical potential.