The Welsh 800 metre runner Gareth Warburton will miss the Commonwealth Games after being suspended from all competition following a doping violation.
The 31-year-old, who was part of Team GB at the London 2012 Olympic Games, has the opportunity to respond to the charges and can also have them determined at a full hearing before the National Anti-Doping Panel.
Warburton says the news of the anti-doping rule violation has come as a great shock to him and he hasn't knowingly taken any banned substance.
The Commonwealth Games in Glasgow run from July 23rd to August 3rd.