The window shut at 11pm.
Ruben Amorim had said the club would try everything to improve their squad before Monday night.
Graham Potter felt his sacking as Chelsea head coach, after just seven months in charge, was unfair and he left Stamford Bridge once again with a burning sense of injustice.
Manchester City’s stunning winter transfer window spending surpassed £180 million with their late deadline-day move for Spanish midfielder Nico González from Porto.