Grame Swann, Amy WIlliams, Darius Knight and Louis Smith face off for Xbox

Graeme Swann, fresh from the cricket World Cup, Olympic gold medallist Amy Williams, Louis Smith, the first Briton to win an Olympic medal in gymnastics since the 1920s, and table tennis star Darius Knight face off in a series of virtual contests at the Kinect Sports Superstars event in London.