With Billy Vunipola fit and in form anything is possible for England at this World Cup.
I can’t overstate the big man’s importance as Eddie Jones’ team finally begin the campaign they have spent so long working towards.
That tomorrow’s game is against his homeland of Tonga means Vunipola is inevitably cast as the central character.
But had it been against New Zealand, South Africa, Wales or Ireland the billing would have been the same.
He will see it as his job to pay the country of his heritage the ultimate respect by tearing them apart.
This is a fixture in which his dad and uncle played in 1999 – for Tonga. I know, I was in the England team that day.
Giving a good account of himself is therefore a non negotiable for the Saracens man.
But no matter who he plays against is faced with the same problem of trying to halt an irresistible force.
In a rugby landscape increasingly clogged by huge men he is one of the very few to truly stand out.
He has the rare ability to find space and create momentum where there is none, through deceptive acceleration and lateral movement.
By moving himself half a body, right or left, he is able to ride a tackle and drive that power through. And knowing he’s going to do it makes little difference.
But that is only half the threat he carries. Both he and his brother Mako bring other players into the game with the quality of their long and short range passing.
So double up on them or over-commit and they simply move the ball on and create space for someone else.
That’s the real threat. Not only does he create space through his physical stature and his brute force, he creates it for himself and other people by the mere threat of him doing something other than just carry.
In short, Billy Vunipola is an immense physical presence. a player with world class skills, soft and hard, and a potential player of the tournament.
All of which is great for England if they can keep him on the park. I’m not saying they can’t win games without him but I don’t know if they could win a World Cup.
He really is that influential.