Roger Federer's formula for final? Renting TWO houses to avoid being disturbed by his young family

Roger Federer has gone to extraordinary lengths to get a good night's sleep before today's Wimbledon final – renting TWO houses to avoid being woken by his young family.

He is living in one with his tennis team, while the other is for wife Mirka and their two sets of twins – 14-month-olds Leo and Lenny, and Myla Rose and Charlene Riva, almost six.

Each home is worth £4 million, and renting both for the fortnight will have cost Federer around £30,000.

A source said: 'Roger had to be sure of getting a good night's sleep, but he still wanted his family with him so the simplest solution was to rent two houses. Judging by the way he has performed this year, it's working perfectly.'

The world number two will look to become the first man to win an historic eighth Wimbledon title when he plays the reigning champion Novak Djokovic in today's final.

The super Swiss blew Andy Murray away in Friday's semi-final with a breathtaking display on Centre Court, winning 7-5, 7-5, 6-4.  

Federer, 33, currently shares the record of seven wins with American Pete Sampras and victory would make him the oldest Wimbledon winner in the Open Era.

World number one Djokovic, 28, beat Federer in the 2014 final for his second title at SW19 in what was a memorable five-set classic. 

The Serbian trails 20-19 in their head-to-head record since 2006, but has the better of the Swiss this year having beaten him twice already.

Speaking ahead of the final, Federer, who last won a grand slam in 2012 (when he beat Murray at Wimbledon), said: 'I'm just happy to be back in a final. I'm very pleased how well I'm playing. But I need to keep it up for one more match to really make it the perfect couple of weeks.' 

Federer's wife Mirka, herself a former professional tennis player, with their elder twins Myla Rose and Charlene Riva, almost six 

The seven-time Wimbledon champion defeated Britain's Andy Murray with a superb display on Friday

Federer, 33, is three years older than Arthur Ashe was when he won Wimbledon in 1975 and the oldest man in a final since Ken Rosewall, who was 39 when he lost to Jimmy Connors in 1974