Now, Courtois' agent, Christophe Henrotay, has called on the Premier League club to show his client some compassion by allowing him to return to Madrid to be closer to his children, who currently live in the Spanish capital.
Courtois, who was recently honoured with the Golden Glove at the FIFA World Cup 2018 in Russian Federation, will return to London at the moment to join the Blues in training.
Courtois has a three-year-old daughter and one-year-old son from a previous relationship.
"For him, this is a big decision because he wants to be near his family", he said, adding, "there is an offer in place [from Madrid] for Chelsea to accept".
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However Chelsea will not want to pay top wages for both Courtois and his replacement at the same time meaning a deal will likely be done swiftly if a new goalkeeper arrives.
Chelsea and their players have been targeted by the likes of Real Madrid, Barcelona and even PSG, but the Blues have now shortlisted two world class replacements for the Belgian star.
"It is understandable people might be upset because he wants to leave the club, we accept that".
Meanwhile, Chelsea manager Maurizio Sarri is still unsure of what lies ahead.
The club are fully aware of his movements and say they gave him prior permission to return late following his World Cup campaign with Brazil this summer, dismissing reports he had gone AWOL. So I don't know the situation in this moment.