Tennis' ATP World Tour Finals stay in London until 2015

The ATP World Tour Finals will remain at London's O2 Arena until 2015 after a two-year extension was agreed.

The season-ending event, which features the world's best eight singles players and doubles teams, has been held at the venue in Greenwich since 2009.

"We are very happy to announce the extension of our commitment," Association of Tennis Professionals president Brad Drewett said.

The tournament has been contested in 14 different cities across the globe.