Should he triumph, Federer will become the oldest winner of the Challenge Cup since tennis turned professional in 1968.
After both players lost their serve once each in the third set, they reached a tiebreak, where Cilic had the upper hand.
"Sam hasn't been at this part of the tournament. maybe that can have a small part in playing that match", he said.
"It would mean absolutely the world to me", Cilic said. He won the Halle Open, on grass, in fine form and has been fantastic throughout Wimbledon. But it's still a final. The player moved to the Wimbledon final without dropping a single set. I was 4/1 up in the tie-break and didn't convert.
"When I won the US Open, it just opened so many possibilities in my mind for the rest of my career". "I'm very pleased with how I'm playing, you don't feel the same every day, but you adjust to conditions".
He will face Marin Cilic in the final on Sunday in what will be the Croat's first ever Wimbledon final.
Now awaits the man who has won a major before, but never at Wimbledon.
In conclusion, we must say that anything less than a Federer win will definitely be a surprise. Federer has made it clear this season that he will choose the tournaments he wants to play and will not overload his schedule chasing ranking points and titles.
There was the sublime and occasionally the ridiculous from the 18-time grand slam champion, who got so much chop on one attempted drop shot that it landed several metres short of the net.
If Williams, 37, takes home the championship, she'll become the oldest woman to win a Grand Slam title in the Open era - surpassing her sister Serena Williams for the honor.
"It makes me really happy, making history here at Wimbledon". "It's a big deal". All my dreams came true here as a player.
Victory would continue a remarkable year for Federer.
The Croatian went down a break in the fourth set but climbed back to 4-4 with a break-back. Federer was written off a year ago after sustaining an injury during a losing semi final at the All-England Club, however, he has responded in great style.
"I was just totally surprised by Australia, Indian Wells and Miami", Federer said.