Sue Barker hosts more coverage from the All England Lawn Tennis and Croquet Club in Wimbledon, where the world's most famous tennis championships commence. Roger Federer begins his defence of the men's singles title, which he won for a fifth time last year, thus emulating the achievement of tennis legend Bjorn Borg. First day of play last year saw Serena Williams, Marion Bartoli and Shahar Pe'er all winning their games with ease. Show less