Wales unofficially top rugby world rankings
Wales are unofficially ranked the best side in the world after Australia beat New Zealand.
Australia beat world the world champions 47-26 in the Rugby Championship at Perth's Optus Stadium.
Wales face England at Twickenham in a warm-up match on Sunday.
Should Wales now avoid defeat against England on Sunday, they will end New Zealand's 10-year reign as world number one.
Gareth Davies said the game is more than just a friendly.
Skipper Alun Wyn Jones will overtake prop Gethin Jenkins to become Wales' most capped player on Sunday with 135 international appearances - 126 for Wales and nine in British and Irish Lions colours.
However, scrum-half Tomos Williams has been ruled out of the clash with a shoulder injury picked up in training on Thursday.
He has now been replaced on the bench by Osprey' Aled davies.
Wales are chasing .a record 15th successive victory, with Warren Gatland fielding 13 of the starting line-up that clinched the Six nations title and Grand slam in March.