Wimbledon, Greater London: Switzerland’s Roger Federer leaves after a training session at the All England Tennis Club in Wimbledon, southwest London on the eve of the start of the 2013 Wimbledon Championships tennis tournament. AFP PHOTO
LONDON: Roger Federer will aim to prove he is still the king of Center Court on Monday as the ageing Swiss star starts his Wimbledon defense under intense pressure from his rivals for the All England Club crown.