Juan Martin del Potro overcomes Gilles Simon test

Argentina's Juan Martin del Potro has beaten Gilles Simon of France in three sets in the third round of the men's Olympic singles at Wimbledon.

Eighth seed Del Potro stormed to a 6-1 win in the first set before Simon, who is seeded 11th, came back to take the second 6-4.

However, the Argentine earned a decisive break in the third to claim the final set 6-3.

The former US Open winner will play either Spain's David Ferrer or Japan's Kei Nishikori in the quarter-finals.