Tokyo: Wallabies fans can rest easy. Australia will go to the Rugby World Cup with Israel Folau after the dual international put pen to paper on a four-year deal.

Fairfax Media understands the contract has been signed for some time but Rugby Australia and the Waratahs decided to delay the announcement. It means Folau will play in Australia until the end of 2022.

Staying put: Israel Folau. Credit:AAP

It is a big coup for both organisations, who straddled divided public opinion and a defiant Folau to get the deal done some six months after his anti-gay comments caused a social media firestorm.

Negotiations were well underway on the fullback's contract at the time but the saga, sparked by an Instagram comment while Folau was sidelined by injury in April, put them on the back burner for most of the Super Rugby season.