Andy Murray has been drawn alongside world number one Novak Djokovic for next week's ATP World Tour Finals at the O2 Arena.
The US Open winner will also face Jo-Wilfried Tsonga and Tomas Berdych in arguably the stronger of the two groups.
Defending champion Roger Federer is the standout name in the other pool, which also includes David Ferrer, Juan Martin del Potro and Janko Tipsarevic.
The top two from each group will progress to the semi-finals.
