Cadel Evans has withdrawn from the OIympic Mens Time Trial on Wednesday.
The 2011 Tour De France winner has said that he is too fatigued to compete.
The Australian national team will not be replacing him and Michael Rogers will be the lone Aussie in the race.
Bradley Wiggins will ride for Great Britain and will be up against favourite Tony Martin of Germany, the World Time Trial Champion.
Fabian Cancellera is still be rated as doubtful after crashing in the mens road race yesterday.
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