The Crusaders have revealed that All Blacks captain Richie McCaw will have surgery on his broken thumb to have a screw inserted.
All Blacks captain McCaw saw a specialist on Monday to assess his broken thumb and the specialist decided that it was best for McCaw to have surgery.
McCaw will have surgery on the thumb on Tuesday and a screw will be inserted.
This kind of injury is common and is known as a Bennetts fracture.
The screw will remain in McCaw's thumb permanently and should have no long term effects.
Despite McCaw having surgery he is still looking at a period of up to eight weeks out of action.
This means that McCaw could be out until the Crusaders' against the Brumbies in the 12th round on May the 3rd.