Cape Town - Sonny Bill Williams has been widely linked with a return to rugby league in 2017 following his commitments with the New Zealand Sevens side at next year's Olympics.
Williams, who played key cameo roles in helping the All Blacks win back-to-back Rugby World Cup titles in England this year, will sit out next year's Super Rugby tournament to focus on winning the gold medal in Rio.
According to the Stuff website, Williams helped the Sydney Roosters to their 2013 grand final win and has been training in their gym alongside the club's Under-20s while in Australia in the off-season.