Tim Benjamin (Belgrave Harriers) today announced he has taken the decision to leave Colin Jackson’s training group. The 25 year-old 400m runner will now concentrate on his long term development as he moves forward towards the Beijing and London Olympics.

Benjamin said: "After much consideration I have taken the difficult decision to leave Colin Jackson’s training group in Cardiff. I believe this is the right decision for me with Beijing just around the corner and the Olympics in London five years away. I want to take this opportunity to thank Colin for all he has done for me."

UK Athletics Performance Director Dave Collins said: "It is important for our senior athletes to try new things as part of their training and long term development.

“We will now work with Tim to focus on getting him in the best possible shape for the rest of the season and to prepare him for the starting line in Beijing next year with the full and continuing support of UK Athletics."

Colin Jackson added: "It has been a pleasure to work with Tim and his decision has my full support. I wish him every success and believe he has the talent and ability to achieve at the highest level. I am proud of my work with Tim and look forward to contributing to the development of British athletes."