It's similar to what happened when boxers Mike Tyson and Evander Holyfield fought last year.
Valuev went on to make an unimpressive defence against four-time former world champion Evander Holyfield last December.
The youngest of eight children, Evander Holyfield was raised by his mother Annie in circumstances of poverty.
World heavyweight champion Evander Holyfield turned 50 this year -- but he still wants to box professionally.
CNN: The end game: How sports stars battle through retirement
But Holyfield also faces a fight outside the ring: He lost his Atlanta-area mansion to foreclosure in 2012.
CNN: The end game: How sports stars battle through retirement
Holyfield can still draw a crowd, nearly 30 years after his professional debut.
CNN: The end game: How sports stars battle through retirement
Holyfield sees it as an opportunity to teach others how to manage money.
CNN: The end game: How sports stars battle through retirement
Holyfield's original aspiration of a career in American football was dashed when he was told that he was too small.
But getting used to big swings in the bank account isn't the only challenge celebrity athletes such as Holyfield face.
CNN: The end game: How sports stars battle through retirement
I've created promotions for many artists and athletes including: Beyonce, Evander Holyfield, Lady Antebellum, Elton John, Jason Aldean and Tom Petty.
Ruiz won his first heavyweight crown in 2001 when he won a unanimous decision over Evander Holyfield for the WBA title.
Then there's the Holyfield Foundation, set up by three-time heavyweight boxing champion Evander Holyfield to promote spiritual, educational and athletic development among youth.
Mike Tyson bit off a chunk of Evander Holyfield's ear and spat it on the ground as the pair fought for the world heavyweight title in 1997.
He twice defended the belt - including a draw with Holyfield in a rematch the same year - before losing it to Roy Jones Jr in 2003.
The boxer lost the 1988 Seoul Olympic super heavyweight final to Lennox Lewis, but in 1992 he became the undisputed heavyweight champion of the world after beating Evander Holyfield.
Yet in each fight, he appeared at times bored and lethargic, and his American critics maintained that fights with the likes of Bowe or Holyfield would result in severe beatings.
Jones yawned in opponents' faces - literally - he talked endlessly about stepping up to challenge Evander Holyfield at heavyweight, he played basketball on the eve of fights, he cut hip-hop records.
After marching to the final four, Holyfield seemed on the verge of securing a place in the final when he knocked out his New Zealand opponent Kevin Barry with a perfect left hook.
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