Newcastle United boss Rafa Benitez cannot guarantee he'll be in charge next season.

He admits it will be tough to leave, should it come that.

Benitez stated, "Always when you are happy in a place, it is not easy.

"But at the same time, you want to compete, you want to do well and you want to improve. It's not just that you will be a better manager.

"You want to be a better manager winning something. We have to be sure we can do that."