Roger Federer's 5 worst Grand Slam defeats

#4 Kevin Anderson (2-6, 6-7 (5), 7-5, 6-4, 13-11): 2018 Wimbledon

Day Nine: The Championships - Wimbledon 2018

Federer entered the 2018 Wimbledon Championships as one of the favourites, considering Novak Djokovic's patchy form and Andy Murray's absence due to injury. The Swiss looked the part in his opening four matches, strolling through to the quarterfinals without dropping a set.

He began the QF in perfect fashion as well, racing to a two sets to love lead against an opponent he had not lost to even once in four past meetings. However, buoyed by a monstrous serve, the South African began to claw his way back into the match. With his sledgehammer of a forehand finding the lines consistently, Anderson saved a match point in the third set at 4-5 before breaking Federer and taking the set 7-5.

His form carried into the fourth set as well as he overpowered the Swiss with devastating baseline play, one break of serve again enough to earn him the set. With Federer reeling under the power of the Anderson game, it was only going to be a matter of time before the Swiss cracked.

Sure enough, Anderson managed to attain the decisive break in the final set at 11 all before serving it out for the biggest victory of his career. It was only the third time Federer had let slip a two-set lead in a Grand Slam.