New Zealand cross-code star Sonny Bill Williams is set to join Super League newcomers Toronto Wolfpack on a two-year deal.

Williams will be a marquee player and has agreed a reported multi-million pound deal to return to rugby league.

The 34-year-old was a member of the All Blacks side who finished third at rugby union's World Cup in Japan last week.

A two-time World Cup-winner in rugby union, he won two Australian NRL titles in rugby league.

The Wolfpack were promoted to Super League for the first time after winning the Million Pound Game last month.

That came just three years after forming, meaning top flight rugby league will be played in North America for the first time in 2020.

The Canadian side start their Super League campaign against Castleford Tigers on 2 February.

Williams has had two spells in rugby league, with Australian sides Canterbury Bulldogs from 2004-08 and Sydney Roosters from 2013-14, winning the NRL title with both.

A back in union but a forward in league, he played in New Zealand's loss to Australia in the 2013 Rugby League World Cup final.

Later that year he was named Rugby League International Federation player of the year, and has been capped 12 times by New Zealand's rugby league team.

He moved to rugby union in 2010 and had spells with French side Toulon and New Zealand Super Rugby sides the Crusaders, Chiefs and Blues.

Williams played 58 times for the All Blacks, winning the World Cup in 2011 and 2015.

He has also boxed professionally, winning all seven of his fights, and held the World Boxing Association International heavyweight title and New Zealand Professional Boxing Association heavyweight title.