Dire outlook . ATP World Tour Finals has attracted capacity crowds in London . The tournament is the first time since 2009 that it will be held outside of Europe and North America - with a total prize fund of £3.4million ($4.5million) for the men's singles event. Tennis has ridden economic downturn with record prize money on offer . International appeal of stars such as Roger Federer and Maria Sharapova cited .
ATP World Tour Finals has attracted capacity crowds in London . The tournament is the first time since 2009 that it will be held outside of Europe and North America - with a total prize fund of £3.4million ($4.5million) for the men's singles event. Tennis has ridden economic downturn with record prize money on offer . International appeal of stars such as Roger Federer and Maria Sharapova cited .