SIR Chris Hoy stands on the threshold of becoming Britain's greatest ever Olympian, spurred on by the gold medal winning achievement of team mate Jason Kenny.

Good luck messages were being tweeted for the Scottish cyclist, who hopes to overtake former rower Sir Steve Redgrave's record medal haul and claim a sixth gold in the men's keirin cycling event at 5.50pm tonight.

Kenny, who won gold alongside Hoy in the team title, stormed to victory yesterday in the final of the men's cycling sprint, with a thrilling victory over French world champion Gregory Bauge in the final.

Edinburgh-born Hoy will eclipse Redgrave's five golds if he retains his title in the event in front of 6000 fans in the London Velodrome.

A medal of any colour will see Hoy top the British Olympic medal table by equalling fellow cyclist Bradley Wiggins's mark of seven, while also holding more golds than his counterpart. Fans wished Hoy well on social networking sites last night. Connor Newton tweeted: "Let's hope Hoy storms to keirin gold."

Mark Green wrote on Facebook: "Wiggins isn't in your league, bring home another gold to Scotland."

Kelly Smiler added: "Here comes the sixth gold medal Chris."

The men's sprint win for Kenny, 24 – who was selected for the event over Hoy – means he now has two golds in the London Games to add to one from Beijing. The cyclist from Bolton, said: "I hadn't thought about it until we got into that last ride and then it suddenly dawned on me, the battle I had just to get here with Chris.

"Knowing you've got someone on the sideline that definitely wouldn't give that second sprint away - I was thinking I'd better not mess this one up."

It was UK cycling's fifth gold from seven events, with more success possible today when Victoria Pendleton and Laura Trott also ride for glory.