World number one Novak Djokovic said Monday that tennis' big four -- himself, Roger Federer, Rafael Nadal and Andy Murray -- were still the favourites to win Grand Slam titles in 2019.

From the pits of despair in Paris, record-setting Novak Djokovic now eyes a third US Open title in New York where for the first time since Wimbledon last year, the sport's 'Big Four' will be reunited.