Kai Havertz has asked to take the no.29 shirt at Chelsea, which is currently occupied by Fikayo Tomori.
Upon his signing, Havertz' squad number wasn't released by the club and the no.29 which he wore at Bayer Leverkusen was in use at Chelsea, by Fikayo Tomori.
But as per Simon Johnson of the Athletic, Havertz asked the club to take the no.29 when he joined the Blues, which is his favourite number.
And the current holder, Tomori, was reportedly happy to oblige and to give the new arrival his preferred number.
Tomori is expected to head out on loan to Everton for the 2020/21 season under Carlo Ancelotti, and the number will be therefore vacant.
Other new arrivals of Ben Chilwell and Thiago Silva - their new squad numbers are still unknown.