FILE - In this Oct. 24, 2015 file photo, New Zealand's Sonny Bill Williams runs with the ball during the Rugby World Cup semifinal match between New Zealand and South Africa at Twickenham Stadium in London. Williams passes for a superstar in this part of the world where rugby holds a rare pre-eminence over all other sports. When he competes in rugby sevens at the Olympics in Rio de Janiero next month it's likely his light, which shines brightly in Australasia, will be eclipsed by stars in sports with a more international reach. (AP Photo/Christophe Ena, File)FILE - In this Oct. 24, 2015 file photo, New Zealand's Sonny Bill Williams runs with the ball during the Rugby World Cup semifinal match between New Zealand and South Africa at Twickenham Stadium in London. Williams passes for a superstar in this part of the world where rugby holds a rare pre-eminence over all other sports. When he competes in rugby sevens at the Olympics in Rio de Janiero next month it's likely his light, which shines brightly in Australasia, will be eclipsed by stars in sports with a more international reach. (AP Photo/Christophe Ena, File)