5 shocking defeats suffered by Roger Federer in 2018

#3 Thanasi Kokkinakis, Miami Masters

Thanasi Kokkinakis couldn't believe that he came back to beat the legendary Federer

Even before the lull in form started for Federer, he conceded an upset to a player ranked outside the top 100.

After losing out in the final at Indian Wells, Federer came into the Miami Open with his sole focus on winning the trophy. Meanwhile, Thanasi Kokkinakis had qualified for the main draw by virtue of winning the qualifiers, and he won his Round of 128 match to set up a daunting contest with the master.

Federer started off in style, coasting to a one-set lead. But he faced a strong response from the young Australian, who after facing pressure in his first service game of Set 2 broke the Swiss' serve to love in game 4. He then comfortably held the rest of his serves and got a set back.

In the decider, Kokkinakis warded off 2 break points in a single game and took it to the tie break. There, he edged Federer 7-4 to complete a brilliant come-from-behind upset.