Clay court king Rafael Nadal attacks the US Open which starts on Monday as world No 1 for the second week running.

The Spaniard took over the ATP rankings summit last week for the first time since July 2014.

The 31-year-old, aiming for his second Grand Slam of the season in New York after his success in the French Open, tops the latest ATP charts released on Monday with 7645 points.

The top 10 were unchanged with Andy Murray, who pulled out of the US Open on Sunday with a hip injury, in second and Roger Federer third.

The top 10 remains unchanged with Andy Murray, who on Sunday pulled out of the US Open with a hip injury, in second and Roger Federer third.

Stan Wawrinka and Novak Djokovic close out the top 5 with Alexander Zverev, Maric Cilic, Dominic Thiem, Grigor Dimitrov and Kei Nishikori rounding out the top 10.