![FILE PHOTO: Tennis - ATP 1000 - Paris Masters - AccorHotels Arena, Paris, France - November 3, 2018 Serbia's Novak Djokovic reacts during his semi final match against Switzerland's Roger Federer REUTERS/Gonzalo Fuentes/File Photo](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/XVHPVIIQTMNG4ZSJA2VWGCWTTY.jpg?smart=true&auth=139cc490a8fc5ec2a77e5533fdc73e4d9a64f0d56e5c3077a2b0a72163544359&width=400&height=225)
Novak Djokovic is the world No 1 and favourite to win the ATP Finals title in London. Reuters
Novak Djokovic is the world No 1 and favourite to win the ATP Finals title in London. Reuters
ATP Finals player guide: Novak Djokovic and Roger Federer lead eight-man field
World No 1 Djokovic aims to complete his stunning return to the top with his sixth title in London