"Having a world champion this early in my career really is a dream come true, " said Nelson.
The experienced James Hickman, the 200m butterfly world champion, has been forced to withdraw with a shoulder injury.
Former welterweight world champion Trinidad is returning to the ring after a two-year lay-off.
The two-time world champion competed for the first time since ankle surgery 16 months ago.
"It's a completely different year, " said the 23-year-old, who could become Formula One's youngest world champion.
"The difference between third and fourth is just one point, " said the world champion.
Taylor first became a world champion in 2005 after beating Bernard Hopkins on points.
Hamilton has extended his title lead to five points ahead of world champion Raikkonen.
Among those to congratulate Hamilton was former McLaren team-mate and double world champion Fernando Alonso.
In the flyweight final, Ren will face Britain's Nicola Adams, who defeated five-time world champion M.
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Several other drivers joined the 2008 world champion in exploring the limits in the dusty conditions.
McDonagh spent last winter training in American with Olympic and world champion Dwight Phillips.
How can this guy they have never particularly rated suddenly be a world champion?
Soldini has continued to earn more prestigious titles including the Class 40 World Champion.
Hamed, who was world champion at featherweight, is looking forward to working with Johnson.
Schumacher cannot be world champion again if Rosberg is in front of him all the time.
The standout performer was lightweight Stalker, who beat world champion Domenico Valentino in his first fight.
The former world champion has been coached by Griffiths for the past two months.
Hamilton, the 2008 world champion, was fifth in the afternoon while Button was back in ninth.
The 2009 world champion took a commanding lead from the start and never let up.
Pole sitter and three-time reigning world champion Vettel was third in a Red Bull.
Brewmaster Marc Gottfried is a 2-time World Champion and the most award winning brewer in St.
His last fight was an impressive stoppage of former world champion Hassine Cherifi in November.
Halsall won gold in a British record 26.24 seconds, ahead of Australian world champion Marieke Guehrer.
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Olympic and world champion Gatlin also ran 9.77 in Doha on 12 May this year.
He ran comfortably ahead of teammate and reigning world champion Jason Richardson, who finished in 13.04.
It is Colbourne's first Paralympic Games and he is already his sport's world champion.
Seven-time world champion Michael Schumacher is to race again for Ferrari while Massa recovers.
Scotsman Alister McRae, brother of former world champion Colin, won the production class with ease.
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The Brazilian has performed well above expectations this year, out-driving his world champion team-mate, Kimi Raikkonen.
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