England and Leicester loose forward Tom Croft has warned Wales that they will face a "dangerous" England side at Twickenham.
Wales go into Saturday's Six Nations clash as favourites, despite not winning at HQ since 1998.
"Watching the boys train the last few weeks, they are an exceptionally dangerous side," Croft said.
"The last two weeks we've had time to fix up and make sure everything is running smoothly the way it should be.
"It was always going to be a matter of improving week on week because it was such a new side but things have really come on in the last two weeks and we're confident."
Stuart Lancaster will name his side to face Wales later this week.