Keith Thompson, 68, from Shefford, was admitted to the emergency department in March 2010 for routine monitoring.

BBC: Bedford Hospital 'mystery wound' patient seeks answers

Keith Thompson, of Holyhead Cycling Club - joined by Mr Williams at the age of 17 - said he had last seen the "lovely young man" at a club meeting on Boxing Day.

BBC: Profile: MI6 spy Gareth Williams

With Darran Lindsay, William and Robert Dunlop, Stephen Thompson, John Burrows, Davy Morgan, Keith Amor, James McBride, Les Shand, Mark Parrett and Gary Carswell also among the entry the action promises to be fast and furious.

BBC: SPORT | Motorsport | Motorbikes | Bike battle beckons