Sonny set to sign with Blues
Williams will front a media conference in Auckland following weekend reports in New Zealand saying that he wants to chase a third World Cup campaign with the All Blacks.
There is a good chance the 30-year-old is set to leave the Chiefs to join under-performing Super Rugby rivals the Blues, where he would come under the tutelage of coach and former All Blacks centre Tana Umaga.
Williams is currently competing for a spot in the 12-man New Zealand Sevens squad for the Rio Olympics.
NZ Rugby Chief Executive Steve Tew do not want to be drawn in speculation on Williams' future at the naming of the New Zealand squad on Sunday.
"Everyone knows we're keen to keep Sonny Bill and we're working our way through that," Tew stated.
Williams was part of the Rugby World Cup-winning teams in 2011 and 2015 after making the shift to rugby from NRL outfit Canterbury in 2008.
He returned to the NRL for two seasons with the Sydney Roosters in 2013, picking up a premiership title in the process before returning to the 15-man code in September 2014.
It was rumoured Williams would return to the cashed-up Sydney Roosters after the Rio Olympics.
