PARIS: Rafael Nadal and Tomas Berdych have secured their places at the ATP World Tour Finals, leaving just two spots in the eight-man field to fill. Nadal and Berdych will compete alongside Novak Djokovic, Andy Murray, Roger Federer and Stan Wawrinka at the season finale in London from November 15-22. Nadal qualified for the 11th consecutive season after reaching the semi-finals of the Shanghai Masters, one week on from a runner-up showing at the China Open in Beijing. Berdych will make his sixth consecutive appearance at the season-ending event.