Thomas Tuchel says he cannot understand why Timo Werner would be unhappy at Chelsea and urged the forward to "show quality" in order to become a regular starter.

Werner has endured a frustrating two years with the Blues following his big-money move from RB Leipzig two years ago.

The Germany international has failed to establish himself in the starting line-up, having scored only 10 Premier League goals in two seasons for the London club.

Werner was on target in a 2-1 friendly win over Club America last weekend and suggested after that friendly that he could leave Stamford Bridge, as he needs regular first-team football ahead of the World Cup in Qatar.

The 26-year-old missed out due to a hamstring injury as Chelsea were beaten 5-3 on penalties by Charlotte FC on Wednesday after the two sides had been level at 1-1.

Blues boss Tuchel raised eyebrows over his compatriot Werner's comments following the midweek defeat.

He said: "I'm surprised, I would be very happy as a young guy having a contract at Chelsea Football Club. I would be one of the happiest people on the planet."

Asked how Werner can go about forcing his way into the team, Tuchel replied: "Show quality, take your place and defend your place.

"I would be one of the happiest people on the planet having a contract with Chelsea. If he said this, I do not understand."

Tuchel has no intention of allowing Werner to move on.

When asked if he will be a Chelsea player in the upcoming season, Tuchel said: "Sure, he is our player, sure."

Tuchel revealed that Cesar Azpilicueta, Kepa Arrizabalaga and Ross Barkley were unavailable to face Charlotte due to injury.