One of the great things about tennis is that there's always the possibility of an upset.
Crowds love it when an underdog plays the match of their lives and topples a more highly rated player.
From now on a top player having a bad day - making more unforced errors than usual, serving a double fault on a crucial point, missing an easy smash - may find themselves under a bit more scrutiny than usual.
Having been to several Wimbledon tournaments as well as a French Open, I have experienced that thrill as a spectator. But were those upsets I witnessed for real, or was it all a fix?
Had we all been duped?