Roger Federer has been declared fit for the start of the Davis Cup finals.
The 33-year-old was considered a doubt for the tournament after pulling out of last week's ATP World Tour Finals with a recurring back injury.
However, Federer underwent a successful practice session this morning and will represent Switzerland against Gael Monfils of France when the competition gets underway tomorrow.
Federer is looking to win his first Davis Cup title.
