Sonny Bill Williams is eyeing a fight with three time Australian heavyweight champion Bob Mirovic before returning to the Chiefs next year.

It is understood that Williams' agent, Khoder Nasser, has been in talks with Mirovic for the past two months.

Williams' return to the ring was always going to be a touchy subject, but boxing is a lucrative avenue to supplement the 28 year old's earnings.

A clash with Mirovic after the Rugby League World Cup would provide a welcome payday before joining the Chiefs.

Meanwhile, the All Blacks will play Argentina at 10.40am this Sunday while the Springboks will take on the Wallabies at 3am in the Rugby Championship.

Story by: Filipe Naikaso
Source: stuff.co.nz