The 18-time Grand Slam champion defeated Czech Tomas Berdych 7-6(4), 7-6(4) 6-4 in the semi-final contest that lasted for two hours and 18 minutes to enter his 11th Wimbledon final on Friday.
On the other hand, Cilic beat American 24th seed Sam Querrey 6-7, 6-4, 7-6, 7-6 in the semi finals.
Cilic's former coach Goran Ivanisevic says that Marin has the potential to become a top-four player and this weekend represents his best chance of winning a Wimbledon title.
And should Cilic lift a second Grand Slam title to add to his Flushing Meadows juggernaut ride three years ago, it would be an era-ending triumph, the first time for 15 years that anyone outside the 'big four' of Federer, Andy Murray, Rafael Nadal and Novak Djokovic has lifted the title.
35-year-old Federer is now the second oldest finalist after Ken Rosewall who finished runner-up in 1974 at the age of 39. (ANI)