Even if Federation Internationale de Football Association rejects their appeal, the process is likely to see the start of Chelsea's transfer ban delayed until after the summer, meaning the Blues would be able to sign players when the window reopens.
"The Disciplinary Committee sanctioned Chelsea with a ban on registering new players at both national and worldwide level for the next two (2) complete and consecutive registration periods".
They have also been fined 600,000 Swiss francs, while the FA has been fined 510,000 Swiss francs.
Chelsea issued a statement "categorically refuting" the findings of FIFA's Disciplinary Committee.
"Chelsea FC acted in accordance with the relevant regulations and will shortly be submitting its appeal to Federation Internationale de Football Association".
Chelsea have transfer-ban previous.
The ban means Chelsea will be unable to sign players until the 2020 summer window but the London club are expected to appeal the sanction. This cutthroat approach has yielded good results with some players, but also resulted in a world where Chelsea once had Kevin De Bruyne, Romelu Lukaku, Mohamed Salah, and Felipe Luis all on the books, among many other big name players, and decided all were surplus to requirements.
Chelsea may be less willing to send players out on loan or agree permanent moves for those who are already out on loan, which is where Kenedy comes into it.
The Premier League giants have also been handed a fine of £460,000, while the English FA bags £390,000 sanction.
During the ban, the Blues will not be able to sign new players, but will not be stopped from selling current stars to prospective clubs.
Chelsea also twice breached regulations relating to third-party influence, article 18bis, Federation Internationale de Football Association said.
Chelsea can appeal this decision as well, though it's not clear yet if they will. UPDATE: Chelsea will appeal.
Chelsea was facing an uncertain short-term with Eden Hazard angling for a transfer to Real Madrid. Right now, he's a Chelsea player on loan at Borussia Dortmund. The governing body has in the past brought successful prosecutions against Barcelona, Real Madrid and Atlético Madrid for infringements related to the signing of minors and its pursuit of these cases springs from a determination to help protect children from potential exploitation and trafficking. New signing Christian Pulisic doesn't look like the finished article and if the club are not in a position to sign a suitable replacement for their talisman then cashing in might seem a very unattractive option.