1987 Wimbledon winner Pat Cash:, external 1 Canadian in the ladies final can Raonic beat Federer and make it 2? prob not but what about Djokovic v Dimitrov #wimbledon hot day Fed in box seat

Those are your contenders then. By the end of the day we will be down to two.

Which two though? That is the big question isn't it?

You can cast your vote on the right-hand side of this very page...

Image source, AP

Federer will face Milos Raonic in the second match on Centre Court today.

After fellow Canadian Eugenie Bouchard made her first Wimbledon final yesterday, Raonic will hope his bazooka serve prevents Federer unfurling those celebrated groundstrokes and he can follow suit.

The six-foot-five-inch 23-year-old has hit a tournament-leading 147 aces so far. While Federer has Stefan Edberg and Djokovic has Boris Becker, Raonic has former Croatian world number three Ivan Ljubicic in his camp.

Image source, Reuters

What more is there to say about Roger Federer?

The Swiss has 17 Grand Slam titles, seven of which were secured on Centre Court and regularly has the letter GOAT added after his name like an academic qualification. "Greatest Of All Time" for those out of the know.

The most significant stat though might be the 32 years on the clock. Since winning the 2012 Wimbledon title, he has not been in another Grand Slam final.

Father Time beats the greatest champions in the end and might be a break up in the decider.

Image source, Reuters

His opponent Grigor Dimitrov - for too long famed for having a backhand like Roger Federer and a face like a catalogue model - is finally his own man.

The Bulgarian has blossomed under the no-nonsense regime of coach - and former Aussie Rules footballer - Roger Rasheed, making serene progress through the draw.

Coming off the back of lifting his first grass-court title at Queen's, the 23-year-old was taken to five sets by Alexandr Dolgopolov in the third round, but otherwise it has been straight sets all the way.

Girlfriend and 2004 champion Maria Sharapova has been helping him with some advice as well.

"She says, 'Win it'. What can I say? I think that's a good tip," revealed Dimitrov.

Image source, PA

So now the cast list has been slimmed down, let's have a little look at each of the players taking to the Centre Court stage this afternoon.

Novak Djokovic will kick us off at 13:00 BST in his match against Grigor Dimitrov. The 2011 champion has 1985, 1986 and 1989 champion Boris Becker in his corner for the first time this year.

If the aim has been to bring the sort of steely-eyed focus on the prize that Ivan Lendl and Andy Murray cooked up last year, the partnership has been a limited success.

While Djokovic has made the last four, he has spent longer on court than any of the other semi-finalists - 12 hours seven minutes - and looked tetchy on court in wins over Jo-Wilfried Tsonga and Marin Cilic.

Maybe he is missing the influence of pregnant fiancee Jelena Ristic, who has her feet up at home.

And then there were four.

Or is it two groups of two?

Grigor Dimitrov and Milos Raonic - the baby boomers delivering on the hype in their first Grand Slam semi-finals.

Novak Djokovic and Roger Federer - the battle-hardened old stagers racking up 58 big-Four last-four matches between them.

Mind the generation gap - it's men's semi-finals day.