Jurgen Klinsmann has offered Chelsea star Christian Pulisic advice in order to turn his Chelsea fortunes around, saying he must become “nasty”.

Ex-USA manager and Spurs legend Klinsmann says the £58million Yank is a “very special player” who needs to tell Blues boss Frank Lampard he is ready to start.

Ex-Borussia Dortmund winger Pulisic, 21, admits he is “very frustrated” after playing just once in five games since his summer arrival at Chelsea.

And Klinsmann told ESPN: “He will go through a phase now where more and more he needs to bring his elbows out to fight himself through the system there

“Can he do it? Yes, absolutely he can do it, but you need to be patient too, sometimes you forget he’s a very young player.

“You don’t have that automatic assurance at Chelsea. You’re basically in training and you have to tell the coach: ‘I’m in, I’m going to start this game.’

“So it’s a little bit more cold, it’s a bit more nasty. What I mean with the elbows is that you have to become nasty in order to make yourself a starter.”