Notable upsets in tennis over the years
John Millman defeats Roger Federer – 2018 US Open, Fourth round
The five-time US Open champion was knocked out of the tournament after losing to the Australian 3-6, 7-5, 7-6, 7-6. This was Millman's first win against a top 10 player. Millman also became the first Australian to beat Federer in a Grand Slam game, since Pat Rafter in 1999.