ATP World Tour Finals draw: Novak Djokovic to play Roger Federer in group stage

Novak Djokovic and Roger Federer have been drawn together in Group B for this year's ATP World Tour Finals.

The pair, who both reached the semi-finals of the Paris Masters earlier this week, are joined by former US Open champion Juan Martin del Potro.

Frenchman Richard Gasquet, who will be the lowest-ranked player competing at the event, is also in Group B.

Group A will feature David Ferrer, Tomas Berdych, Stanislas Wawrinka and world number one Rafael Nadal.