The Blues tried to sign two players from La Liga, but they found that the goal posts had been moved before the deadline.
Chelsea have told a host of players, including Callum Hudson-Odoi, that they can not seek loans after negotiating with Jules Kounde of Sevilla and Saul Niguez of Atletico Madrid.
In the case of Saul, the Blues want a deal if it can be done as a fixed loan, but the Spanish champions want a clause that is likely to make a permanent deal for £ 34 million ($ 47 million). The 26-year-old would like to move to Stamford Bridge.
Meanwhile, Chelsea have found for Kounde Sevilla have taken a non-negotiable stand and are demanding 65 million euros (56 million dollars). The Blues probably weakened their negotiating position by selling Kurt Zouma to West Ham for £ 29.8 million ($ 41 million) without a guaranteed replacement.
How does this affect exits?
Although can force the Blues through a move for Customers using its release clause, they will probably wait until the last hours of the window in a cat and mouse game.
With doubts over a deal for the 22-year-old, Callum Hudson-Odoi’s proposed move to Borussia Dortmund is one of the moves being blocked, while Ruben Loftus-Cheek’s situation is also linked to Saul.
Hudson-Odoi is open to join German giants after being an unused substitute in the first three games of Thomas Tuchel, but the Blues manager wants the 20-year-old as a cover.
Ethan Ampadu was also told that he will stay at the club and that he will not be able to get a loan as his situation is related to Kounde developments.
What transactions will go through?
Tiemoue Bakayoko’s move to AC Milan will not be blocked by the situation and will be announced soon.
The Blues earn € 1 million a year from the deal and another € 1 million if Milan qualify for the Champions League. There is a mandatory call option of € 17 million (£ 15m / $ 20m) under certain conditions.
Malang Sarr, Danny Drinkwater, Ross Barkley and Lewis Baker will be allowed to leave, regardless of the situation elsewhere.
Additional reporting by Paco Rico in Seville.