England number eight Billy Vunipola has responded to South Africa's vow to "fight fire with fire" in the Rugby World Cup final with "bring it on".
Those comments were echoed by England assistant coach John Mitchell, who said the final features the "two most powerful teams in the world".
Vunipola said: "South Africa have very big people but then again we have a few big blokes on our team."
Saturday's final is at 0900 GMT in Yokohama.
More to follow.