# Barclays ATP World Tour Finals

All time
# greece lightning
Tournament debutant Tsitsipas overcomes Thiem in thriller to win ATP Finals title
Stefanos Tsitsipas and Dominic Thiem served up a classic at the O2 Arena and it was the Greek who came out on top.
# Young gun
Confusion and drama as Zverev stuns Federer at ATP World Tour finals
The young German advances through to the end-of-season final for the first time.
# Downer
Rafael Nadal confirms that his season is over as he's set to undergo surgery
The Spaniard has withdrawn from the ATP Finals.
# Anticlimax
Federer withdraws from Tour final as Murray steps in to play exhibition match
It would be fair to say the 17,500 fans who paid upwards of £500 a ticket were not overly impressed.
# Numero uno
Djokovic to end 2012 as world number one
The Serbian will pass Roger Federer on November 5 and can’t be caught at the top of the rankings.