Novak Djokovic cruised to a 6-3 6-3 over Rafael Nadal victory on Saturday (21 November) to remain on course to win his fourth ATP World Tour Finals title in a row.

SOUNDBITE (English) Novak Djokovic, beat Rafael Nadal 6-3 6-3:

"I don't feel unbeatable, but it does definitely feel great when I'm playing the way I've played today, You know I've had so many wins this year that..... of course make a difference in terms of the approach, the optimistic approach to the matches and the confidence level that I feel on the court. It's quite different when you know you haven't lost too many times, especially against Rafa that I won last, I think what three times that we played against each other. So, that all plays a major role in the mental approach."

SOUNDBITE (English) Rafael Nadal, lost 6-3 6-3 to Novak Djokovic:

"2016 is going to be a new year and hopefully a better one for me, and we'll see. Novak for the moment is almost unbeatable. As I've said before the only thing you can do is congratulate him."