Williams out of the Olympics

New Zealand Sevens player Sonny Bill Williams has been ruled out of rest of the Olympic games after suffering an injury during his side's 14-12 loss to Japan.

The Rugby World Cup winner ruptured his achilles tendon during the men's teams' first game of the competition according to Stuff.  

New Zealand also lost Joe Webber after he suffered a shoulder injury. 

The loss of Sonny Bill Williams will be a massive blow to the team. 

New Zealand's next game will is against Kenya.