Kepa Arizzabalaga was dropped by Frank Lampard earlier this season.
The Spaniard is no longer the No.1 goalkeeper in the Chelsea team having replaced by summer recruit Eduoard Mendy.
He has been shambolic the prior season and Chelsea was looking for options in the summer window for a replacement.
The world’s most expensive goalkeeper who arrived from Athletic Bilbao in 2018 for a club-record £77m has made only four appearances this campaign.
Former Blues keeper Robert Green Chelsea are stuck with a huge financial mess surrounding the unwanted Spaniard.
“It’s a tough sell. It’s a numbers thing,” Green told The Athletic.
“Chelsea and [their director] Marina Granovskaia are not in the business of losing money.
“They have an asset which is depreciating greatly but with football clubs in the financial state they’re in, it’s going to be tough to put something together.
“I’m not even talking just about selling, even a loan is going to be a struggle.
“The transfer fee and the wages [believed to be around £170,000 a week] is the biggest obstacle to resolving the situation.”
See More: Top 5 Chelsea Players To Be Sold 2020