England wing Jonny May believes his team's backline are set to reach their potential at the upcoming Rugby World Cup.
Although May, George Ford, Anthony Watson and Jonathan Joseph are relatively inexperienced at Test level, they have all impressed which bodes well for England's future.
May insists England's backline have the ability to become the game's best.
"We've talked about the potential of this back-line because it's got world-class potential," he said.
"We've got ambitions to be the best back-line in the world. It's a big target to go for, but I think we've got the potential to do it.
"Personally I'm happy with how the camp and how the warm-up games have gone. I'm always a player trying to learn and improve and be the best I can be.
"But more importantly the team is gelling together and since that 31-man squad has been announced we've all been in it together.
"I've made gains across the board in terms of fitness, size, strength and speed over the pre-season.
"It's been great to have a 12-week block to really push ourselves. I haven't that for a few years, so along with the other boys across the board, we have made gains."