Owen Farrell believes England's never-say-die attitude was the key to their sensational 38-21 victory over New Zealand.
The win over the world champions came on the back of frustrating defeats to Australia (20-14) and South Africa (16-15) and Farrell hailed the belief of the side.
"The belief has always been there. This win just solidifies that. We know that when we bring our game we can beat anybody," he said.
"We felt the performances were there but we didn't quite get the results we wanted. We felt like it was nearly there
"I know on the outside people didn't think that. But the stuff that has been said on the outside has only made us tighter as a group.
"There is a lot of fight in this team, there is a champions' attitude and it showed out there. The boys put their bodies on the line and really worked hard to put the pressure on.
"We really put in a good performance and it can only do us good going forward. If we stick to our processes and do what we do well, we will challenge any team. If we take our game to them on the day, it doesn't matter who we are playing we are going to trouble them."
Meanwhile, Farrell - who pulled the strings astutely in open play as well as kicking 17 points in all on Saturday - said no one had been more surprised by his inclusion on the IRB shortlist.
Prior to the match, Farrell had been the shock choice among a four-man list of nominees including Dan Carter, Richie McCaw and Frederic Michalak for the IRB honour, which will be presented in London on Monday during the pool draw for the 2015 World Cup in England.
Yet it was Farrell, not Carter, who played like the world record points scorer, fearlessly nailing four penalties and a drop-goal to give England a remarkable 15-0 lead early in the second half.
The two fly-halves swapped jerseys after England's astounding win.
"There is no bigger admirer of him than me," Farrell said of the New Zealand pivot.
"I have watched him very closely.
"We had a little chat after the game and swapped shirts.
"I was massively shocked to be on the (IRB) list. I think I showed bits of what I can do. I can always get better."