England's trouble spot - the battle of the rucks....
Writing in the Daily Mail, former England captain Phil Vickery gives his thoughts on Saturday's crunch World Cup meeting with Scotland.
"Scotland bulldozed England at the breakdown in the Six Nations back in March and it very nearly won them the game. They swarmed the tackle area and England's forwards simply could not cope.
"If Scotland start disrupting the ruck again, they will thrive and England could find themselves in trouble.
"England's game requires quick ball and that relies on one thing - winning the breakdown. They have been talking about it for two years but still haven't solved the problem. It was a lot better against Romania but Scotland will present a different class of challenge."