Hakim Ziyech, a winger for Chelsea, is now out on loan to Paris Saint-Germain till the end of the current campaign.
On deadline day, the 29-year-old underwent a physical in the French capital, but it wasn't until the very last minute that the teams were able to come to an agreement.
However, the agreement is now in jeopardy due to Chelsea's failure to submit the proper paperwork by the deadline of 11 p.m., which has PSG in a rage.
Along with Hull's attempt to convert Xavier Simons' loan to a permanent transfer, Omari Hutchinson's loan move to West Brom also fell through at the last minute.
Ziyech, a Moroccan international, has been seeking to leave Chelsea for more than six months after losing his starting spot under Thomas Tuchel and failing to fully regain it under Graham Potter.
Ziyech caught the interest of several teams, including AC Milan, Roma, Newcastle, and Everton, following a successful World Cup in Qatar.