England cricket head coach Trevor Bayliss says he'll leave his post later this year, even if his team win the World Cup and the Ashes.

The Australian, who is getting England ready for their World Cup Final against New Zealand at Lords on Sunday, will step down when his contract expires in September.

He's told the BBC that he was no desire to extend that deal.

"I have always been a believer that four or five years is long enough, whether you are doing well or not, it is time for a new voice for the boys, to hopefully take them to another level."

Bayliss, though, knows his side still have work to do if they are to follow up their impressive eight-wicket victory over Australia with a win against New Zealand in the final at Lord's on Sunday.

"Four years ago after the last World Cup, which was not good for England, we set out and had planning to hopefully win the 2019 edition, and it feels great that now we have a chance to fulfil those dreams," he added.

"We had a chat in the changing room (at Edgbaston) afterwards and realised we have not won anything yet. There is going to be a lot of noise around 'you guys are the favourites' - we can't listen to any of that.

"We have just got to concentrate on the way we have gone about our cricket over the past four years and what has got us to this point and go through our process. If we do that, we know we will play good cricket and the opposition will have to play even better to beat us."