Four-time Olympic champion Sir Chris Hoy could yet be denied the opportunity to defend one of his three Games titles in London after Jason Kenny defeated his room-mate in the sprint semi-final at the Track Cycling World Championships in Melbourne.
Kenny - Olympic silver medallist in Beijing behind Hoy - claimed a 2-0 victory before finishing second to France's Gregory Bauge, who appears to be the biggest obstacle to British success in August. Hoy was third.
Under the one rider or team per nation per event rule, either Hoy or Kenny will miss out on the sprint in London, with the 36-year-old Scot anticipating the decision will now be made by British Cycling performance director Dave Brailsford, head coach Shane Sutton and sprint coaches Jan van Eijden and Iain Dyer in the bowels of the Manchester Velodrome.
Hoy said: "There won't be any more racing between us - I don't think they'll do any in-house races either. The racing has finished.
"It's going to be a tough one for the selectors. If Jason had won tonight it would have been a no brainer.
"There were five selection events of which I won three - but this was by far the most important. We'll have to wait and see, whatever decision they come up with I'll be behind it 100%. I won't question what the decision is."
Prior to the World Championships the duo, who share the same birthday, 12 years apart, each indicated their belief Melbourne would have a significant bearing on Olympic selection.
They have met five times since September - at the British Championships, the European Championships, Track World Cup events in Kazakhstan and London and in Melbourne.
"Every race this year leading up to the Olympics has been important," Kenny, 24, said. "We've both shown we can still race at a good level, finishing second and third.
"There was nothing between us in the actual race - the first one went down to a tyre's width. There's not a lot more I can do now than go home, concentrate on getting quicker and what will be will be selection-wise. We'll just see what happens."