Chris Hoy, Britain's most decorated Olympian with six golds medals, is retiring from cycling after a 13-year career at the top of the sport.
The 37-year-old Scot has spearheaded Britain's surge to the forefront of world track cycling, winning his first Olympic gold in Athens in 2004 and capturing three more in Beijing in 2008 and a further two at his home games in London last year.
His haul of six golds is one more than British rowing great Steve Redgrave, who won five from 1984-2000. Hoy also won a silver medal at the 2000 Games in Sydney.
Hoy, who won 11 world titles, decided against extending his career through to the 2014 Commonwealth Games, held in Glasgow in his native Scotland.