ATP World Tour Semi-Finals

Novak Djokovic beats Kei Nishikori 6-1, 3-6, 6-0

Defending champion Novak Djokovic has reached the final of the ATP World Tour Finals thanks to a three-set victory overKei Nishikori.

The world number one was in dominant form during the opening set as two breaks of serve saw him come through 6-1 with just 24 minutes on the clock.

Both players exchanged breaks at the start of the second, but Nishikori was rewarded for his persistence at the baseline late on in the set as he took a 5-3 lead before serving it out 6-3.

However, Djokovic responded in ruthless fashion in the decider, breaking Nishikori three times on his way to sealing the win 6-1 3-6 6-0.


Roger Federer through to the final after 4-6, 7-5, 7-6 (8-6) victory over Stan Wawrinka

Roger Federer saved four match points before winning a thrilling all-Swiss semi-final against Stan Wawrinka at the ATP World Tour Finals.

The six-time champion wrestled control from his compatriot and came through 4-6 7-5 7-6 (8-6) in London.

Second seed Federer will take on world number one Novak Djokovic in Sunday's final - live on BBC Two at 18:00 GMT.

Wawrinka and Federer will team up next week as Switzerland try to win the Davis Cup in France.

It looked as though the 17-time Grand Slam champion would be heading to Lille first when his friend and team-mate moved within one point of victory four times.

Wawrinka, 29, served for victory at 5-4 in the decider but might regret choosing to serve-volley on three match points, missing a makeable backhand volley on the second.

The Australian Open champion earned a fourth match point in the decisive tie-break but could not return a good serve, and Federer made him pay with a nerveless drop volley on his first match point.

It brought an end to the longest, and by far the most entertaining, match of the week at two hours and 48 minutes, which kept the 17,000 spectators at the O2 Arena gripped throughout.

There was brilliant ball-striking from both men and controversy, as Federer argued with umpire Cedric Mourier after an over-rule in the third set which looked as if it had derailed his hopes.

Wawrinka began in spectacular fashion, breaking twice in the first set and holding off a resurgent Federer for 11 games in the second.

With a tie-break in sight, the pressure finally told and Federer broke to love thanks in part to a woeful Wawrinka smash that betrayed his nerves.

Federer appeared to be on the charge, only to be knocked off course by a dispute with umpire Mourier.

A Wawrinka backhand flew wide - later confirmed by Hawkeye - on the opening point of the final set, but Federer apparently did not hear Mourier over-rule his line judge.

It was only two points later, when Mourier announced the score was 0-40 and not 15-30, that Federer realised the situation and approached the chair.

There was nothing that could be done, however, and a flustered Federer hammered a forehand over the baseline to lose the game.

Wawrinka still faced a considerable task to keep hold of his advantage all the way to the finish line but got within a point four times, only to fall agonisingly short of only a third win over his illustrious compatriot in 17 attempts.