Wimbledon singles champion Martina Navratilova has said she is 'gutted' to have missed out on attending the 100th anniversary of SW19's Centre Court this afternoon after testing positive for coronavirus. Navratilova only tested positive for the virus this morning ahead of the long-awaited celebrations at lunchtime, before Heather Watson kicked off play on the court with an unfortunate loss to Germany's Niemeier. The tennis legend tweeted: 'I am gutted I can't be there' ahead of the celebration, which featured a surprise appearance from Sir Cliff Richard and finished with a live performance from British singer Freya Ridings.