Fifteen-year-old qualifier Cori Gauff pulled off one of the biggest upsets in tennis history as she defeated five-time Wimbledon champion Venus Williams in the first round of this year’s competition at SW19. Gauff, who wasn’t even alive when Williams won her fourth Grand Slam title, beat her American compatriot 6-4 6-4. Even though Williams, aged 39, is coming to the end of her illustrious career, this was a huge shock but how does it compare to other great sporting wins by underdogs? We’ve taken a look at some other notable upset wins, how do you think Gauff’s victory compares to these?