England will revert to the creative alliance of George Ford and Owen Farrell against Argentina as a means of unleashing the destructive force of nature they call the 'Chief'.
Manu Tuilagi is primed to wreak havoc against the Pumas on Saturday, just as he did in the Pool C opener against Tonga in Sapporo 10 days ago.
The Leicester centre is only 28, but he admits he is unlikely to have another World Cup in him, so he is determined to make the most of this one.
Manu Tuilagi wants to make the most of what could be his last World Cup as a player
But first, the Anglo-Samoan wrecking ball explained his nickname within the set-up, saying: 'Chief comes from back home, where we have chiefs of the village. My dad is the real chief!'
The next fixture will bring Tuilagi full circle. His first World Cup appearance came against Argentina in Dunedin, New Zealand, eight years ago. Back then, he was a raw, rising star, before all the injuries which have stalked his career.
These days, Tuilagi has become used to a different routine. Instead of just training, playing and trusting his instincts and power, he has to spend so much time doing painstaking recovery work and managing his body.
'I could never be the old me again,' he said. 'It's different now. I need to warm up for 30 minutes before I start!
'I have to have ice-baths, massages and do Pilates. But I enjoy it more than I did before. I know that it is not going to last for ever — that it is not going to last very long. I have got to enjoy the moment while it is here.'
The powerful centre has been in destructive form for England since his return to the side
Asked if he could see himself being involved at the next World Cup, Tuilagi said: 'Probably not. I'll be too old, mate! Yeah, I feel it.' He is much more interested in talking about team-mates, notably the two who will be nearest to him on Saturday.
Ford and Farrell: the playmaker double-act who create space for him and provide a big-match soundtrack. The trio give England a complementary threat in attack.
'I love it,' said