England and France shuffle packs for key encounter
Stuart Lancaster and Philippe Saint-Andre fine-tune starting line-ups ahead of potential title clincher

Parling comes into the second row in place of Dave Attwood, who drops out of the squad, in the only change to the team who overcame Scotland 25-13 last weekend. Harlequins number eight Nick Easter returns to the bench.
He has got some games under his belt [and] we feel it is the right time to start him and use his experience and quality in the starting line-up
"Geoff did well off the bench against Scotland and now that he has got some games under his belt we feel it is the right time to start him and use his experience and quality in the starting line-up," Lancaster said.
"The same goes for Nick Easter, who has really impressed in camp and in his appearances off the bench. Nick is a quality ball carrier and great defender - things we feel we'll need in the latter stages of the game."
Seeking a first Championship success since 2011, England go into the final weekend level on points with Ireland and Wales at the top of the table, but with a points difference advantage of plus-4 and plus-25 over their respective pursuers.
France coach Philippe Saint-Andre has named a 16th different half-back pairing. Young Stade Francais fly-half Jules Plisson, 23, comes in for injured first choice number 10 Camille Lopez, who misses the game at Twickenham due to a knee problem.
