Kenenisa Bekele: The reigning Olympic champion over 10000m and 5000m will be targeting another long distance double. Bekele has won the 10000m at the last two Games and will become the first athlete ever to complete a hat-trick in this event if he can clinch the 2012 title.
David Oliver: The American 110m hurdler has yet to win an Olympic gold but his sensational times suggest he's ready to challenge defending champion and world record holder Dayron Robles in what should be an explosive final.
Jessica Ennis: Missed out on the Beijing Olympics due to injury but has since proved she's one of the best heptathletes around following her world and European gold medals in Berlin and Barcelona.
Yelena Isinbayeva: The Russian pole vault queen will be seeking her third straight Olympic crowd in London and yet another world record will also be expected from her.
Mo Farah: A moved to America has certainly done the trick for Britain's long distance king, with Mo the double European champion at both 5,000m and 10,000m and even a winner in his first run at the half marathon. Not he knows he can take on the best he will be a strong fancy for either race in London - or maybe even both!
Caster Semenya: All eyes have been on the young South African 800m runner for a number of reasons, but now the gender saga has been settled by the IAAF, the world champion will be hoping to add an Olympic crown in London.
Teddy Tamgho: If anyone can spoil Phillips Idowu's chances of Olympic gold then it is enigmatic Frenchman Tamgho, who recorded the third biggest triple jump ever in 2010 just days before his 21st birthday. Consistency is a problem but when he gets it right world indoor record holder Tamgho looks like he could dominate the event for years if his character holds up.
Blanka Vlasic for the high jump
LJ van Zyl: Former Commonwealth champion van Zyl will challenge Dai Greene and the Americans in the 400m hurdles. Sixth in Beijing, van Zyl has found an extra gear in the last year and despite losing his Commonwealth title to Greene he still looks a big challenger for gold.
Blanka Vlasic: Croatian high-jumper is her country's best athlete, has the second-best jump of all time and is a two-time world champion, world indoor champion and European champion, but agonisingly won silver in Beijing - few would bet against her grabbing gold this time around.
David Rudisha: Kenyan 800m runner exploded onto the scene in 2010 by beating Wilson Kipketer's 13-year-old world record, before doing it again just a week later! Rudisha clocked up four of the best times ever over two laps and something special will be needed to stop him if he gets it right in London.
DOB: 17/5/1956 Event: Boxing Medals: 1 gold Flag: USA
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