The England players will be well aware of some of the more potent players in the Tonga side when they meet in Sapporo, with a number of them playing alongside one another in the Gallagher Premiership on a week-in, week-out basis.
There are also some fresher faces in the forms of Vunipola Fifita of the Brumbies or New Zealand club rugby hooker Siua Maile, but if Tonga head coach Toutai Kefu has any chance of springing a remarkable upset – or at least pushing England closer than many expect – he will need to lean heavily on three of his star performers.