England fly-half George Ford tips Japan to cause more upsets at the Rugby World Cup after shock Scotland win

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England fly-half George Ford believes Japan can advance deeper into the Rugby World Cup if they maintain the stunning form shown in progressing to the knockout phase.

The hosts have toppled heavyweights Ireland and Scotland en route to setting up an historical first appearance in the quarter-finals where they face South Africa at Tokyo Stadium on Sunday.

A gripping 28-21 victory over the Scots has lifted them to seventh in the global rankings - the highest position they have ever held - and Ford is impressed by how they make the most of their strengths.

England fly-half George Ford scoring a try against Aregntina during the Rugby World Cup 

'It's knock-out games now, so it's about whoever plays best on the day, and Japan have a bit of momentum behind them,' Ford said.

'I'm sure the country is getting behind them as well, but we will see how they get on. I'm not surprised they have gone well - they have some belief.

'From what I believe, they have had a fair bit of time together to prepare for this World Cup.

Japan's victory over Scotland to book their place in the quarter-finals was hugely momentous

'They play to their strengths and that is fast, moving the ball into space. But they can also carry, are good at the breakdown, slowing it down and kicking at the right time.

'Teams try to maximise their strengths - whatever they believe they are - and that makes them no different to us.

'When we played them at Twickenham in November they were pretty good, especially the first 40 minutes.'

Japan survived a late fightback by Scotland to secure their place among the World Cup elite in a match that was under threat of being cancelled due to Super Typhoon Hagibis.

'I thought it was a brilliant game, it lived up to the hype. I was really impressed with how controlled and accurate they were,' Ford said.

'You could see how the momentum shifted between the teams throughout the game, with each team getting on top.'

Japan coach Jamie Joseph - who succeeded Eddie Jones - and his assistant Tony Brown spent time with England during this year's Six Nations.

'It was great to have them in, watching what we do then having discussions with them. They have a different way of looking at things and a different approach,' England scrum coach Neal Hatley said.

Yu Tamura (top) congratulates Keita Inagaki after he scored Japan's second try of the game 

'It's about what suits your team and players. We do things differently. It's like getting to 10 - you can do five plus five or seven plus three. They go seven plus three, we might go differently.

'You can't help but be enthralled at the speed of their game, but it also suits the players they've got.

'I also sometimes like five five-metre scrums in a row and line-outs. The beauty of our game is that it involves all sorts.'

Japan now face a quarter-final against South Africa, who they famously beat four years ago

England travel to Oita on Monday where they will step up preparations for their quarter-final against Australia, a team they have beaten six times in a row.

Number eight Billy Vunipola (ankle) and wing Jack Nowell (hamstring) remain doubts for the last eight showdown after sustaining injuries against Argentina nine days ago.

'Our record against Australia is irrelevant. Completely irrelevant. What has gone on in the past doesn't matter,' Ford said.

'It is all about this week, all about the game on Saturday, we will make sure we are ready.'

Japan will now go on to face South Africa in the quarter finals of their home World Cup