ATP WORLD TOUR FINALS

Djokovic and Berdych face a potential straight shoot-out for a semi-final place.

Nishikori must beat Federer and hope other results go his way to reach the semi-final.

Wawrinka wins 7-5 6-2 as Rafael Nadal becomes second player to qualify for semi-final.

Nadal comes through 6-4 6-1 to move to brink of semi-finals.

Round one losers Wawrinka and Ferrer fight for their lives in the second match on day four in London.

Murray's second round robin match sees him face a rejuvenated Nadal at the O2 Arena.

Federer becomes first player to qualify for the last four with a 7-5 6-2 win.

The Japanese number one comes through 7-5 3-6 6-3 to leave Berdych on the brink.

Djokovic and Federer duel in a repeat of last year's final with a place in the semi-final at stake.

Berdych and Nishikori face each other fighting for their tournament lives in London.

The Spaniard wins 6-3 6-2 on his return to the tour finals.

The British number one says "terrorists are winning" if people become concerned by security.

Murray prevails 6-4 6-4 to complete transition to hard courts of O2 Arena.

Tennis star spoke of need for more human response to the the refugee crisis across Europe.

Wawrinka and Nadal meet for the fourth time in 2015 at the season-ending tour finals.

The British number one begins preparations for the Davis Cup final on home turf.

The six-time champion cruises to a two-set win at the O2 Arena.

Djokovic wins 6-1 6-1 to begin march to fifth title with a simple victory.

Wimbledon and US Open runners-up Murray and Peers begin final tournament together with a win.

The British number one reverses decision to miss season ending tour finals in at London's O2 Arena.

The multi-purpose Flanders Expo will hold Belgium's first Davis Cup final appearance for 111 years.