The world tennis number one Rafael Nadal has defeated Novak Djokovic 7-5 6-2 at the ATP World Tour Finals in London after the Serb suffered eye trouble.
What had been an intense battle for more than hour suddenly became a stroll for Nadal after the world number three began to struggle with his vision.
He left the court at 4-4 in the first set after a problem with his contact lenses and was still rubbing his eyes when he dropped serve at 5-5, giving Nadal the chance to serve out an opening set, which lasted 76 minutes.
The Spaniard showed no mercy as he seized two breaks in a 36 minute second set and now leads Group A with two wins.
Djokovic and Tomas Berdych, who earlier beat Andy Roddick, have one ,with Roddick yet to get off the mark, but all could still qualify for the semi-finals.