Roger Federer of Switzerland reacts during a break in the last set of the semi-final match against Marin Cilic of Croatia at the 2014 U.S. Open tennis tournament in New York, September 6, 2014
Roger Federer of Switzerland reacts during a break in the last set of the semi-final match against Marin Cilic of Croatia at the 2014 U.S. Open tennis tournament in New York, September 6, 2014. Reuters

Barclays ATP World Tour Finals, which will be the final leg of the tennis year to be held at London's O2 arena, announced an impressive launch event worthy of the sport's unofficial 'fifth Grand Slam' moment.

On November 7, a bunch of celebrities will join the eight top singles and doubles players of 2014 in the largest indoor tennis tournament in the world, which will take place from November 9 to 16.

Dubbed as "One For The Boys," the event proceeds will be donated to charity bearing the same name. It was organised by Samuel L. Jackson, a famous Hollywood actor and film producer. The charity aims to raise awareness and educate people about male cancer. The charity event will also parcel out funds to different cancer charities.

Three renowned players of the world tour, Roger Federer, Rafael Nadal and Novak Djokovic, were already qualified for the finals. In a report by ATP World Tour, the six-time World Tour Finals champion Federer expressed that he was looking forward to a great night. He further said, "It's always special when all the players can come together as a group, together with the ATP, and support a great cause. Hopefully the fans will come out and support us, and we look forward to putting on a great show."

Samuel L. Jackson also expressed gratitude that the ATP has chosen "One For The Boys" as the benefiting charity for the Barclays charity for the Barclays ATP World Tours Finals launch event. He further claimed that it is an amazing opportunity to work with the top tennis players in the world, who are also aware of their health status.

The World Tour Finals, with the support of Moët & Chandon, have aided in funding more than £1.2 million for foundation. The competition has been supported by more than 1.25 million fans to the O2 arena over the past five years, making itself the worldwide largest indoor tennis tournament since it started in London in 2009.