Hoy claims keirin gold

Four-time Olympic champion Sir Chris Hoy won a sensational men's keirin gold medal on the final day of the Track Cycling World Championships in Melbourne.

Hoy - the 2007, 2008 and 2010 world champion and Olympic champion in Beijing in the event which begins behind a motorised Derny bike - was a comfortable winner of his heat and second-round contest to advance to the final.

The 36-year-old Scot appeared to be boxed in on the final bend, but accelerated as a gap opened up between Germany's Maximilian Levy and Simon van Velthooven of New Zealand before lunging for the line.

Hoy punched the air with delight, but an 11th World Championships gold medal of his distinguished career was confirmed only after a photo finish.

Levy was second, with Van Velthooven third and Britain's Jason Kenny squeezed out of the medals in fourth.

It was Britain's sixth gold of the five-day event at the Hisense Arena - five coming in the 10 events on August's Olympic track programme in an ominous warning to their Games rivals.

Matt Crampton was fourth in the minor final to place 10th overall.