Sebastian Coe has not been selected for Great Britain's Olympic Athletics Squad which was announced today.
The 55-year-old former two time gold medal winner of the 1500m said in May he thought he had a "good chance" of running at London 2012.
He said: "Naturally I am very disappointed, but there will be no bigger supporter of the team than me."
"I would have been honoured to have been part of this unique Team GB squad. Like everyone, I will be hoping that GB team can win a hat load of medals."
Coe has won four Olympic medals, including the 1500 meters gold medal in 1980 and 1984. His rivalries with fellow Brits Steve Cram and Steve Ovett put middle distance on the map and the British dominated the event for years.
Coe, Ovett and Cram were known collectively and affectionately as the COC squad, based on their initials.
Lord Coe will no doubt receive widespread sympathy after his omission from the GB team, especially after all the hard work he has done as Head of the 2012 Olympic Committee, his effort bringing the games to London and many felt his reward should have been one last crack at the Olympics.
Coe though is philosophical "I wonder if there is a God?" he said as he stared wistfully from his office window towards the Olympic Stadium, a venue which sadly he shall not be competing at.