Wimbledon 2015: Roger Federer feels more prepared than ever as he goes looking for eighth title at SW19

Roger Federer has won only one Grand Slam tournament in the last five years but the seven-times All England Club champion was in confident mood here. Federer said he had never had a better preparation for Wimbledon and believed he was playing better than he was 12 months ago, when he lost to Novak Djokovic in the final.