Former All Blacks star Sonny Bill Williams has announced retirement from both rugby union or rugby league following a recurring knee injury.

SBW's record, All Blacks' future, Dombrandt switch and Sarries new no.9

New Zealand assistant coach Ian Foster played down rumours on the injury of Sonny Bill Williams ahead of the World Cup that kicks off this week.

New Zealand head coach Steve Hansen has confirmed that Sonny Bill Williams will miss the final round clash of the Rugby Championship against Australia in Perth.

Blues centre Sonny Bill Williams has suffered another injury setback that puts him in doubt for the Rugby Championship opener against Argentina in Buenos Aires.

Blues and All Blacks midfielder Sonny Bill Williams is reportedly on the brink of returning to action in Super Rugby after missing out in the last two months with a knee injury.

Racing add Manu, SBW back to League, Naholo with Irish and Quins' Italian

New Zealand have recalled Ngani Laumape as a cover for injured Sonny Bill Williams in the squad ahead of upcoming clash against Ireland at Aviva Stadium on Saturday.

New Zealand centre Sonny Bill Williams is set to make his 50th international appearance when his side takes on Australia in the final game of the Bledisloe Cup in Yokohama.

Sonny Bill Williams has been named in the starting line-up of New Zealand for the Rugby Championship opener against Australia in Sydney on Saturday after the completion of his four match ban.

New Zealand assistant coach Ian Foster believes 'common sense' has prevailed after Sonny Bill Williams' appeal against the details of his four-match ban was ruled in his favour.

All Blacks star Sonny Bill Williams has been declared available for the Rugby Championship opening clash against Australia in Sydney on 19th August.

New Zealand Rugby has confirmed that they have launched an appeal on the decision of World Rugby to ban All Blacks' Sonny Bill Williams following a red card incident in the second Test against British and Irish Lions in Wellington.

New Zealand head coach Steve Hansen has confirmed that All Blacks star Sonny Bill Williams is all set to be available for the Rugby Championship opening clash against Australia next month after serving a four-week ban.

New Zealand have been dealt a major blow ahead of the series decider against British and Irish Lions after Sonny Bill Williams has been handed a six-week ban following his red card incident in the second game in Wellington.

Rugby Rumours: NZ Sevens, Dan in demand, Thorn out of retirement and SBW

As a big blow to New Zealand's campaign in the Olympics rugby sevens, their star player Sonny Bill Williams has been ruled out of the tournament with an injury.

All Blacks star Sonny Bill Williams admitted that winning the gold medal in the upcoming Olympics could be the top most achievement of his career.

Rugby Rumours: Steffon Armitage, SBW, Willie Le Roux and Mike Ford