Kai Havertz is will be confirmed as a Chelsea player in the next 24 hours, and will have to make a decision on his new shirt number.
The German international is yet to take his Chelsea medical, which will be completed in due course ahead of a move to Stamford Bridge.
The club have already agreed a deal with Bayern Leverkusen worth an initial £72million.
Once all the formalities are completed, Havertz will have to make a decision on his new shirt number ahead of his new chapter in west London.
Unfortunately for him, his options are rather limited.
As it stands, Christian Pulisic looks set to be given the No 10 shirt.
Pulisic's No 22 now belongs to new signing Hakim Ziyech.
Meanwhile, Timo Werner has taken Pedro's No 11 jersey.
There are four main numbers that Havertz may get to choose from, all of which belong to players heading for the exit door.
First of all, Tiemoue Bakayoko is in talks with AC Milan over a permanent.
Therefore, his No 14 shirt is set to be up for grabs.
Brazilian flop Kenedy also looks set to leave the club despite little interest.
He has spent time on loan at Watford, Newcastle and Getafe but still has the No 16 shirt in his name at Chelsea.
Davide Zappacosta looks set to return to Italy too following a loan spell with Roma.
His No 21 should be freed up by the end of the transfer window.
Michy Batshuayi's career is also at a crossroads after failing to make the grade under Frank Lampard.
He has the No 23 which may come into consideration for Havertz.
The attacking midfielder currently wears the No 29 at Leverkusen. That however, currently belongs to defender Fikayo Tomori.
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There is interest from Rennes over a loan but Tomori could still stay the club given that Lampard is a big fan of the 22-year-old.
This article was most recently revised and updated 4 years ago
