Djokovic defeats del Potro in World Tour Final semi

  • Novak Djokovic clawed his way back from a set and a break down to beat Juan Martin del Potro in the semifinals of the ATP World Tour Finals in London on Sunday.

    The Serb secured a 4-6, 6-3, 6-2 win over the Argentine.

    Djokovic, who was 3-0 in round-robin play during the week, will play for the title later today against Roger Federer, who earned a 7-6 (7-5), 6-2 victory against Andy Murray.

    Federer has won the season-ending tournament for the last two years.