Chelsea have confirmed Enzo Fernandez, Mykhailo Mudryk and Joao Felix in their Champions League squad but Pierre-Emerick Aubameyang has been left out.
UEFA rules state that only three new players can be registered for the knockout stages, forcing big-spending Chelsea to also omit three of their January signings.
Graham Potter has opted to register his two marquee signings, who cost £107million and £88.5m apiece, and loanee Felix, who has significant experience in the competition.
Aubameyang was left out despite the option to instead omit youngster Carney Chukwuemeka or third-choice goalkeeper Marcus Bettinelli.
He won’t be available as Chelsea travel to Germany to face Borussia Dortmund in the first leg of their last-16 tie on February 15.
In-form defender Benoit Badiashile has also been left out after joining from Monaco for £35m at the start of the January transfer window.
Also not selected are winger Noni Madueke, who was signed from PSV Eindhoven for £29m, striker David Datro Fofana, a £10m arrival from Molde, and midfielder Andrey Santos, who joined for £16m from Vasco da Gama.
Having registered a 24-man squad for the group stage, Chelsea had one spot available on List A but freed up another after selling Jorginho to Arsenal for £12m on deadline day.
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