The semi-finals are fast approaching at the ATP World Tour Finals with Group A concluding their matches last night.
Novak Djokovic and Andy Murray are the players to advance from Group A. Tomas Berdych and Jo-Wilfred Tsonga have missed out on progressign to the semi-finals.
Meanwhile in Group B, Wimbledon champion Roger Federer has already confirmed a semi-final spot despite there being one game to play. Today he takes on Olympic bronze medalist Juan Martin Del Potro, who is currently third and still in the running to progress. Later in the day Spanish number 2 David Ferrer, looking to secure a place in the final four, will battle it out with Serb Janko Tipsarevic.