London: Olympic bronze-medallist Vijender Singh, the country's most celebrated boxer, today bid adieu to his amateur career by turning professional, ruling himself out of next year's Olympics as he no longer remains eligible to represent India.

The biggest name in Indian boxing by a mile after he became the first to bag an Olympic medal -- the 29-year-old today signed a multi-year agreement with Queensberry Promotions through IOS Sports and Entertainment, that will see the middleweight fight a minimum of six times in the first year.