Real Madrid star Toni Kroos has said Kai Havertz’s Chelsea move is a “next step” but also warned his Germany teammate about potential challenges.

The 21-year-old has joined the Blues in a deal which has reportedly made him the most expensive German player ever (Transfermarkt).

Kroos, who is arguably the most successful German player outside the Bundesliga, has a lot of expectations for Havertz, although having been abroad since 2014, he also warned the new Chelsea signing about potential challenges that come with the new environment.

Germany Training And Press Conference

(Photo by Ronny Hartmann/Bongarts/Getty Images)

“If he continues like this, he’ll be hard to stop,” Kroos told Bild am Sonntag (via Sport Bild).

“But there are no guarantees and there are always stumbling blocks in a career.

“Kai is now facing the next step and a new situation. He also has to get used to it first.”

Chelsea Unveil New Signing Kai Havertz

(Photo by Darren Walsh/Chelsea FC via Getty Images)

Havertz himself admitted that the first few weeks will not not be so easy, but he is clearly looking forward to meeting his new teammates with several of them currently away on international duty.

“I want to achieve as much as possible, I try to do my best and of course it is a very big step,” he told Chelsea’s official website in his first interview with the club.

“For me it is a new country, a new culture and it is difficult maybe in the first two or three weeks, but then I think I just want to play football and have fun with the boys.”

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