The All Blacks midfielder Sonny Bill Williams has announced when his next boxing bout will be, but not against who.
Williams, who's unbeaten in his three previous bouts, will fight on June 5th at the Waitakere Trusts Stadium against a yet to be decided opponent.
The Crusaders have a Super 15 bye that week.
The fight will raise money for the Red Cross Christchurch earthquake appeal, with Williams pledging $100,000 and SKY television donating the revenue from the pay-per-view bout.
Williams who was in Christchurch during both September and February's earthquakes says he feels a moral obligation to help out.