Australian Open 2018: How did Roger Federer defeat Marin Cilic? A set-by-set breakdown

Fourth Set: Cilic 6-3

Cilic forces a 5th set

Federer started well and broke Cilic in the very first game and got a break point in Cilic's next service game as well, which Cilic saved. The Croat's serve was improving though, as he hit 4 aces and landed 77% of first serves in. Federer's serve on the other hand went down a notch as he landed only 36% of first serves.

Cilic started to put pressure on the Federer serve, pushing the veteran around the court. In the 6th game, Cilic broke to love and then saved a break point on his serve to go up 4-3.

Federer's improved backhand misfired the whole night with 5 errors in the set and 25 in the match. Cilic took advantage to take a second break to go up 5-3 and win the set in 35 minutes.