Tenth world title for Hoy

A trademark power surge from Sir Chris Hoy delivered his 10th Track Cycling World Championships title in Copenhagen.

At the venue where the four-time Olympic champion won his first world champion's rainbow jersey in 2002 and suffered a career-threatening injury on Valentine's Day in 2009, Hoy won his third men's keirin title in four years.

The 34-year-old powered across the line in customary fashion, breaking early after the derny motorbike left the track, to win Great Britain's first gold of the championships and second medal of the day after the women's team pursuit squad took silver.

Hoy is competing in his first global competition since the 2008 Beijing Olympic Games where he won three gold medals after a hip problem sustained in Denmark ruled him out of the 2009 World Championships in Pruszkow, Poland.

The Scot claimed men's team sprint bronze alongside Jason Kenny and Ross Edgar on Wednesday after a broken pedal prior to the qualification ride hit his hopes, but he made amends a day later with a sensational win at the Ballerup Super Arena.

The men's keirin final required a restart after Malaysia's Awang Azizulhasni was pushed off the track in the first attempt.

But at the second time of asking Hoy reclaimed the rainbow jersey from Maximilian Levy of Germany, who finished third.

Levy was positioned behind the derny and before it left the track, Hoy allowed a gap to build up between himself and the German.

Awang was on the Scot's tail but, with one and a half laps to go, Hoy accelerated away from his rivals and won by half a wheel length from the Malaysian, with Levy taking bronze.