Tennis - and Wimbledon has had its fair share of characters down the years. There's John McEnroe of course - or you might remember Jeff Tarango - who was so upset he walked off court. The latest 'bad boy' is Australia's Nick Kyrgios. He beat number-four seed - Stefanos Tsitsipas - in a match that was far from good-natured. With that - and the rest of the action - here's the BBC's Tim Allman.