The world's eight leading teams pose for the official 2019 Nitto ATP Finals doubles photo.
Clive Brunskill/Getty Images
Roger Federer is set to pursue his first Nitto ATP Finals trophy since 2011.
The world's top eight tennis players gather for the official singles photo of the 2019 Nitto ATP Finals.
Rafael Nadal, Stefanos Tsitsipas, Roger Federer, Daniil Medvedev, Novak Djokovic, Matteo Berrettini, Dominic Thiem and Alexander Zverev pose for a photo ahead of the Nitto ATP Finals in London on Friday.