Kai Havertz has trained for Chelsea for the first time after completing his £72m transfer to the club.
The 21-year-old left Germany's national squad on Friday to confirm his arrival at Stamford Bridge.
The midfielder becomes the sixth new player at Chelsea this summer after the arrivals of Timo Werner, Hakim Ziyech, Ben Chilwell, Thiago Silva and Malang Sarr.
And the youngster could not hide his delight after making the move to west London.
He said: "I am very happy and proud to be here.
"For me it is a dream come true to play in a big club like Chelsea and I can’t wait to meet all the players and the trainers. Yeah, I am very happy to be here!"
And the German has already been in training at the club's complex at Cobham.
Most of the squad that are not on international duty have been given the weekend off but Havertz has been put through his paces.
Frank Lampard will be keen to get his new man fit and ready for their opening Premier League clash against Brighton.
The Englishman will have a wealth of attacking options at his disposal and expectations will have grown after his spending spree.
Chelsea finished fourth in the Premier League, as well as making it to the FA Cup final.
It comes after a number of pundits wrote the Blues off but Lampard will not have the luxury anymore.
Nevertheless, the arrival of Havertz has excited Chelsea fans tenfold - while club chief Marina Granovskaia was over the moon to get a deal done for the up and coming star.
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She said: "Kai is one of the best players of his age in world football, so we are very happy that his future lies at Chelsea.
"He has proven pedigree in one of the best leagues in Europe, he plays for the German national side and he is an exciting, dynamic talent.
"We are delighted to be able to add his versatility and quality to the squad before the season begins."