Sonny Bill Williams:
born 3 August 1985
He is a New Zealand rugby union player and a heavyweight boxer.
He started his professional rugby league career with the Canterbury Bulldogs in the Australian NRL.
He is only the second person to represent New Zealand in rugby union after first playing for the New Zealand Kiwis, and the first to do so since Karl Ifwersen in the 1920s.
He is also the only athlete to simultaneously pursue careers in both professional boxing and international rugby
