King Roger's crown wobbling

LONDON: Roger Federer and Rafael Nadal will step on board the riverboat to the ATP World Tour Finals on Sunday with the world No 1 ranking in their sights.

After a season that began with Federer in floods of tears at the Australian Open and Spain's Nadal seemingly on the verge of complete domination, men's tennis has come full circle with the Swiss maestro once again leaving the rest in his wake.

As London's O2 Arena on the River Thames prepares to welcome the world's top eight singles players, tournament organizers could not have wished for a better scenario to launch the city's five-year stint as hosts.