(CNN) -- Roger Federer said Andy Murray can claim multiple Grand Slam titles after the eight ATP World Tour finalists were introduced to British Prime Minister David Cameron. Ahead of the season-ending event in London, Mr Cameron invited Federer, Murray, world number one Rafael Nadal, Novak Djokovic, Andy Roddick, David Ferrer, Tomas Berdych and Robin Soderling to a reception at Downing Street. The week-long tournament gets underway on Sunday when British number one Murray takes on Soderling in the opening match at the O2 Arena. Top eight ready for London showdown "It's fantastic that the ATP World Tour Finals tournament is back in London for the second year running. It's great for London and great for the country," Mr Cameron was quoted as saying by the ATP Tour website.Eight ATP World Tour finalists meet British Prime Minister David CameronWorld number two Roger Federer says Andy Murray can win multiple titlesFederer believes Murray has the game to dominate tennisATP World Tour Finals start on Sunday in London
"I hope that seeing the world's top players compete right on our doorstep, including _'s very own Andy Murray, will inspire our next generation of sporting heroes." "I hope that seeing the world's top players compete right on our doorstep, including Britain's very own _, will inspire our next generation of sporting heroes."