LONDON, ENGLAND - JULY 01:  A groundsman paints the white lines and another uses a mop on the grass as a cleaner works in the royal box on Centre Court at the Wimbledon Lawn Tennis Championships on July 1, 2013 in London, England. The 2013 Championships are entering their second week at the end of which  Centre Court will become the centre of the world's attention for the women's singles and men's singles finals.  (Photo by Peter Macdiarmid/Getty Images)