One more ambitious transfer target is Erling Haaland, who is being watched by most big teams around Europe.
His arrival would complicate things up front, as he would likely lead the line on his own.
Timo Werner and Kai Havertz would both have their respective places in the side under threat, while a 3-4-3 would still allow for Tuchel to play inside forwards.
But with Mason Mount, Christian Pulisic and Hakim Ziyech all still vying for positions, Tuchel will have some difficult decisions to make.
Chelsea’s possible line-up with Varane and two other signings: Donnarumma; Silva, Varane, Christensen; Hudson-Odoi, Kante, Jorginho, Chilwell; Havertz, Mount; Haaland