Toronto Wolfpack's Sonny Bill Williams speaks at a press conference in January, 2020. AFP
Toronto Wolfpack's Sonny Bill WIlliams receives the ball during the English Super League match against Castleford Tigers in February, 2020. Williams announced his retirement from rugby but the New Zealander isn't giving up on sports, saying he wants to concentrate on his boxing career. AFP
Sonny Bill Williams of Belfast makes a break during the Canterbury Club Rugby match between Belfast and Lincoln University at Sheldon Park on August 7, 2010 in Christchurch, New Zealand. Getty
New Zealand rugby star and boxer Sonny Bill Williams trains with the New Zealand All Blacks. Reuters
Francois Botha and Sonny Bill Williams exchange blows during their WBA heavyweight title fight in Brisbane. Rugby World Cup-winning All Black Williams won their WBA International heavyweight title bout on February 8, 2013. AFP
Sonny Bill Williams won the National Rugby League Grand Final with Sydney Roosters in 2013, before switching back to union. EPA
Sonny Bill Williams represented New Zealand in both rugby league and union. Getty Images
Sonny Bill Williams won the WBA Heavyweight title against South African Francois Botha on February 8, 2013. AFP
Sonny Bill Williams, centre, of the New Zealand All Blacks evades a challenge from Juan Imhoff, left, and Nicolas Sanchez of Argentina during a 2015 Rugby World Cup Pool C match. Getty Images
New Zealand's Sonny Bill Williams gives his 2015 Rugby World Cup winner's medal to a fan. EPA
All Blacks star Sonny Bill Williams speaks to the media after his new contract was announced by the New Zealand Rugby Union on June 1, 2016. AFP
Sonny Bill Williams, right, strikes South African opponent Francois Botha during their World Boxing Association (WBA) heavyweight fight in February 2013. EPA
Sonny Bill Williams poses with fans at the Dubai Rugby Sevens in December, 2015,. Victor Besa / The National
Toronto Wolfpack's New Zealand player Sonny Bill WIlliams warms up before the English Super League match against Castleford Tigers. AFP
New Zealand's Sonny Bill Williams after being shown the red card against the British & Irish Lions at Westpac Stadium, Wellington, New Zealand, on July 1, 2017. Reuters
Sonny Bill Williams of the All Blacks takes a pass during a New Zealand All Blacks training session at Trafalgar Park on September 6, 2018 in Nelson, New Zealand. Getty Images
South Africa's Malcolm Marx tackles New Zealand's Sonny Bill Williams during a Rugby Championship match at Newlands, Cape Town, on October 7, 2017. Reuters
Sonny Bill Williams runs through drills during a training session at Kashiwa no Ha Park Stadium on September 10, 2019 in Kashiwa, Chiba, Japan. Getty Images
New Zealand's Muslim players Ofa Tuungafasi and Sonny Bill Williams pray after the All Blacks' 2019 Rugby World Cup quarter-final victory over Ireland. Reuters
Sonny Bill Williams of the All Blacks stretches during a New Zealand All Blacks gym session on October 28, 2019 in Tokyo, Japan. Getty Images
Toronto Wolfpack's Sonny Bill Williams speaks at a press conference in January, 2020. AFP
Toronto Wolfpack's Sonny Bill WIlliams receives the ball during the English Super League match against Castleford Tigers in February, 2020. Williams announced his retirement from rugby but the New Zealander isn't giving up on sports, saying he wants to concentrate on his boxing career. AFP
Sonny Bill Williams of Belfast makes a break during the Canterbury Club Rugby match between Belfast and Lincoln University at Sheldon Park on August 7, 2010 in Christchurch, New Zealand. Getty
New Zealand rugby star and boxer Sonny Bill Williams trains with the New Zealand All Blacks. Reuters
Francois Botha and Sonny Bill Williams exchange blows during their WBA heavyweight title fight in Brisbane. Rugby World Cup-winning All Black Williams won their WBA International heavyweight title bout on February 8, 2013. AFP
Sonny Bill Williams won the National Rugby League Grand Final with Sydney Roosters in 2013, before switching back to union. EPA
Sonny Bill Williams represented New Zealand in both rugby league and union. Getty Images
Sonny Bill Williams won the WBA Heavyweight title against South African Francois Botha on February 8, 2013. AFP
Sonny Bill Williams, centre, of the New Zealand All Blacks evades a challenge from Juan Imhoff, left, and Nicolas Sanchez of Argentina during a 2015 Rugby World Cup Pool C match. Getty Images
New Zealand's Sonny Bill Williams gives his 2015 Rugby World Cup winner's medal to a fan. EPA
All Blacks star Sonny Bill Williams speaks to the media after his new contract was announced by the New Zealand Rugby Union on June 1, 2016. AFP
Sonny Bill Williams, right, strikes South African opponent Francois Botha during their World Boxing Association (WBA) heavyweight fight in February 2013. EPA
Sonny Bill Williams poses with fans at the Dubai Rugby Sevens in December, 2015,. Victor Besa / The National
Toronto Wolfpack's New Zealand player Sonny Bill WIlliams warms up before the English Super League match against Castleford Tigers. AFP
New Zealand's Sonny Bill Williams after being shown the red card against the British & Irish Lions at Westpac Stadium, Wellington, New Zealand, on July 1, 2017. Reuters
Sonny Bill Williams of the All Blacks takes a pass during a New Zealand All Blacks training session at Trafalgar Park on September 6, 2018 in Nelson, New Zealand. Getty Images
South Africa's Malcolm Marx tackles New Zealand's Sonny Bill Williams during a Rugby Championship match at Newlands, Cape Town, on October 7, 2017. Reuters
Sonny Bill Williams runs through drills during a training session at Kashiwa no Ha Park Stadium on September 10, 2019 in Kashiwa, Chiba, Japan. Getty Images
New Zealand's Muslim players Ofa Tuungafasi and Sonny Bill Williams pray after the All Blacks' 2019 Rugby World Cup quarter-final victory over Ireland. Reuters
Sonny Bill Williams of the All Blacks stretches during a New Zealand All Blacks gym session on October 28, 2019 in Tokyo, Japan. Getty Images
Toronto Wolfpack's Sonny Bill Williams speaks at a press conference in January, 2020. AFP
