Premier League outfit Chelsea are reportedly ready to pay a world record fee for a replacement for Thibaut Courtois, who has not reported for training in the past two days.

Click through the gallery above to see the five most expensive goalkeepers in history are, according to the Daily Metro.

According to the Daily Mail, the Blues have agreed to meet Athletic Bilbao goalkeeper Kepa Arrizabalaga's buyout clause, which will make him the most expensive goalkeeper in football.

Should the deal go through, the Spain international, who has a release clause of £72 million (R1.24 billion), will see his fee leapfrog the £66.8 million (R1.15 billion) amount Liverpool paid AS Roma for Brazilian Alisson Becker.

The report suggests that the 23-year-old is due to fly to London on Wednesday at in a move that will trigger the departure of Courtois to Real Madrid.

Arrizabalaga was once a target for Los Blancos and almost joined them in January, only for the deal to fall through at the final hurdle, with his price back then being £17.5 million (R301 million).

After Chelsea's penalty shootout win over Lyon on Tuesday, Sarri told members of the media he had no idea if the club would be purchasing the young goalkeeper, and also confirmed he had heard nothing from Courtois.

"I do not know at this moment," Sarri told reporters, according to FourFourTwo.

"I want to speak with my club, and then we will decide about it. I am here to talk about this match.

"If I do not know anything about Courtois, I do not know anything about Kepa, of course!

"I saw him one year ago. My first impression was that he is a very good goalkeeper; very young, but very, very good."

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Do you think Arrizabalaga would be a suitable replacement for Courtois? Have your say in the comments section below.