Britain's Dwain Chambers (C) competes in the Men's 60m during The British Athletics Glasgow International Match at The Emirates Arena in Glasgow, Scotland, on January 26, 2013. AFP PHOTO / IAN MACNICOL
Richard Kilty of Great Britain wins the gold medal with team mate Dwain Chambers (R), Femi Ogunode (L) of Qatar and Nesta Carter of Jamaica in the Men's 60m Final during day two of the IAAF World Indoor Championships at Ergo Arena on March 8, 2014 in Sopot, Poland.
Credit: Julian Finney
Dwain Chambers wins his 100m heat during day one of the Sainsbury's British Championships, British Athletics World Trials and UK & England Championships at Alexander Palace on July 12, 2013 in Birmingham, England.
Credit: Jan Kruger
James Dasaolu of Great Britain and Dwain Chambers of the Commonwealth compete in the Men's 60 metres sprint during the British Athletics International Match at the Emirates Arena on January 25, 2014 in Glasgow, Scotland.
Credit: Jeff J Mitchell
Dwain Chambers of Belgrave Harriers competes in the 3rd Men's 100 Metres Semi Final during the Sainsbury's British Athletics World Trials and UK & England Championships at Birmingham Alexander Palace on July 13, 2013 in Birmingham, England.
Credit: Shaun Botterill
Dwain Chambers of Belgrave Harriers in action during the Mens 60m heats during the first day of the AVIVA World Trials and UK Championships at the EIS on February 13, 2010 in Sheffield, England.
Credit: Matthew Lewis
Dwain Chambers wins the Men's 100m final from Harry Akines-Aryeetey during the Sainsbury's British Championships Birmingham: Day Three at Birmingham Alexander Stadium on June 29, 2014 in Birmingham, England.