ATP World Tour Finals - Day One

LONDON, ENGLAND - NOVEMBER 05: Former British tennis No. 1 Andrew Castle poses with a Barclays Cycle Hire bike on the opening day of the Barclays ATP World Tour Finals to launch 'Barclays Bikes Rewards' at the O2 Arena on November 5, 2012 in London, England. 'Barclays Bikes Rewards' offers a variety of great free deals and benefits for members and casual users of the Barclays Cycle Hire scheme across the Capital. Current offers include a discount off a HEAD tennis racket for visitors to the Fan Zone at the Barclays ATP World Tour Finals - to view the latest offers and information on how to redeem the free discounts visit facebook.com/BarclaysBikes (Photo by Matthew Lewis/Getty Images for Barclays)