England coach Eddie Jones says the whole team must step up to fill the huge void left by Billy Vunipola, not just replacement Nathan Hughes.
Barnstorming number eight Vunipola has been one of the standout performers during Jones' first year in charge of England, but the Saracens forward was ruled out of Saturday's Test against Australia and is a doubt for the Six Nations after undergoing knee surgery.
Hughes will make his first England start in place of Vunipola at Twickenham and Jones acknowledged that the Wasps man has big shoes to fill.
However, the Australian - who has won all 12 of his Test matches in charge of England - stressed that the onus is on every member of the team to up their game.
"Big boots [to fill] and a big jersey, Billy is a big man, [but] Nathan has just got to play his own game," Jones said. "It's a big test for him, the first time he will start for England, it's a wonderful opportunity for him.
"[Replacing Vunipola] is more about everyone in the team has got to pick up the slack, it's not one person that has got to fill Billy's boots. We know he is an influential player but Nathan's a very good player in his own right, so it will be up to everyone on the field to pick up a little bit more.
"There's only pressure when you don't know what you're doing, he knows what he's doing, he's got a role to play in the team.
"And the great thing about our team is that we are missing seven influential players and we just get on with it.
"We're a hard working team and we back ourselves to work harder than the opposition. If everyone does that we should win the game."
England have won 13 consecutive Test matches and victory over the Wallabies would equal their best winning streak.