4th set:
1st game:-
Federer to serve - wins 1st point
Murray wins 2nd
Federer wins third
Murray wins 4th
Federere nets and Murray has the 5th
Murray falls, so Federer gets the 6th
Federer gets 7th - Advantage
....but Murray wins - Deuce.
Advantage Federer
Game Federer
1 - 0 Federer