Sarri plays down Roma links, defends Jorginho
It means Chelsea will be unable to make signings until the end of January next year.
"The Disciplinary Committee sanctioned Chelsea with a ban on registering new players at both national and international level for the next two complete and consecutive registration periods," FIFA said in a statement.
'I'm not worried': Under-fire Sarri doesn't fear the sack
In addition, Chelsea were fined 600,000 Swiss francs ($600,000, 530,000 euros) and given a period of 90 days to regularise the situation of the minor players concerned.
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