Sepp Blatter's successor, Roger Federer's future and Rio 2016 are the main sporting narratives.
The world number two is in Dubai for the International Premier Tennis League.
The Swiss tennis champion also said he has no plans to retire soon.
Spaniard said that he was happy with the improvement in his game after a below-par year.
The 17-time grand slam champion splits with Edberg after two-year partnership.
Djokovic eased to a straight sets victory with a fine showing to beat Federer.
Federer and Djokovic meet in the final match of the ATP season in London.
Federer reaches 10th final at season-ending tour finals with 7-5 6-3 victory.
Swiss foes Federer and Wawrinka meet in an eagerly-anticipated rematch from last year's semi-final.
Federer claims third straight round robin win to qualify top of Stan Smith group.
Nishikori must beat Federer and hope other results go his way to reach the semi-final.
Federer becomes first player to qualify for the last four with a 7-5 6-2 win.
Djokovic and Federer duel in a repeat of last year's final with a place in the semi-final at stake.
The six-time champion cruises to a two-set win at the O2 Arena.
A new three-year deal has been agreed to keep the tournament in London.
Roger Federer faces Jack Sock in the semi-final of the 2015 Swiss Indoors. Find out how to follow the match live in the UK.
British number one needs time to adapt to clay and could ditch London showpiece.
Novak Djokovic is tied with Bill Tilden in the seventh spot in the all-time Grand Slam singles titles list.
Federer takes on Djokovic in the final of the 2015 US Open. Find out where to watch live.
Roger Federer beat Stan Wawrinka to advance while Novak Djokovic made easy work of Marin Cilic.
Federer takes on Wawrinka in the semi-finals of the US Open. Find out where to watch live.
Roger Federer and Stan Wawrinka made it to the semi-final after straight sets victories.