England rugby coach Stuart Lancaster admits his players must be more clinical and ruthless against France if they are to capture the Six Nations title.
Lancaster was left with mixed emotions after the 25-13 victory over Scotland at Twickenham - much more of a struggle than necessary with the hosts blowing hot and cold in front of the tryline.
Jack Nowell's late try, England's third of the game, ensured Lancaster's team jumped to the Six Nations summit, but only just.
They have a superior points difference over Ireland (37 to 33) with Wales third (+12).
The scene is now set for a nail-biting, tense and thrilling final day of the Championship next Sunday when Wales kick off the day in Rome, the Irish then play Scotland in Edinburgh and the English host France.
England, who will know what they need to do by the time their game kicks off, will start favourites to lift the trophy. The Irish will fancy their chances against a Scotland side yet to win a game in the tournament.
But Lancaster insisted: "We will have to be sharper than we were here to beat France, that's for sure. The French will not let us miss so many attacking opportunities. They will be dangerous.
"We have given ourselves a chance thanks to this win and to the Welsh beating Ireland. We must just concentrate on what we can do and ensure we do the business against France.
"We were delighted here to make so many try-scoring chances but disappointed to let so many go. To convert three line breaks from twelve we made was not what we wanted."
After Wales had beaten Ireland in Cardiff to open up the title race, Jonathan Joseph and George Ford, who amassed 15 points in total, were England's other try scorers.
Centre Mark Bennett grabbed Scotland's only try and they saw a 13-10 halftime lead dissolve into a 25-13 loss.
England wasted a glut of try scoring chances with two forward passes, ruling out tries for Jonathan Joseph and Mike Brown, plus desperate late tackling from the visitors.
The Calcutta Cup seemed close to slipping through their fingers as their Grand Slam dreams did in Dublin a fortnight earlier. But the men in white managed to compose themselves in the second half and finish the job.
- AAP