The defending champion Roger Federer will be top seed for next week's Wimbledon championships despite being overtaken in the world rankings by Rafael Nadal.
Federer, who win a sixth Wimbledon title in the absence of the injured Nadal last year, has benefited from the All England Club's unique seeding policy that takes in grasscourt pedigree and does not always stick rigidly to world rankings.
Nadal, the 2008 Wimbledon champion who returned to world number one after taking the French Open earlier this month, will be second seed with Novak Djokovic third and home hope Andy Murray in fourth spot.
The women's seeding does stick to the WTA ranking list with defending champion Serena Williams at the top of the draw and sister Venus seeded to meet her in the final.
