Sam Warburton will lead Wales into a Rugby World Cup clash with an England side that he believes has become a completely different team in the last two years.

Wales take on the tournament hosts at Twickenham on Saturday in each side's second Pool A match following victories last week.

England saw off Fiji 35-11 last Friday while Wales were 54-9 winners over Uruguay on Sunday, a match that saw several players limp off injured.

Stuart Lancaster's England are second favourites to win the competition behind New Zealand and have beaten Wales in each of their last two Six Nations encounters.

And Warburton told Omnisport: "Since 2013 they're a completely different team. In 2013 we won in the Millennium Stadium quite well and since then we haven't beaten England and people quickly forget that.

"On the last two occasions they beat us at Twickenham in 2014 and they came here [this year] with plenty of injuries and beat us at home and they were a very different side to 2013 and they seem to have only improved again.

"I saw only the first half [of England's warm-up win] against Ireland and that was a hugely impressive first-half display."

Much has been made of the home advantage England will have at Twickenham, and Warburton is all toO aware of the impact the crowd can have.

He added: "[In] 2014, I remember Twickenham was a very different place to play than in 2012. The atmosphere in 2012 was great, we won that game, but in 2014 my god the atmosphere was amazing.

"That's when Twickenham became after the Millennium my next favourite ground to play in because the atmosphere was brilliant.

"The crowd got behind them so well. You couldn't call a line-out at certain moments during the game because the noise was so loud.

"Playing away from home it doesn't inhibit the away team, you don't get nervous when playing in front of a hostile away crowd, you love it but it lifts the home team a lot more and that's what it definitely did to the England team that year."