Thibaut Courtois's future could still be influenced by the controversial clause signed between Atletico Madrid and Chelsea ahead of the Champions League semi-final.
Atletico president Enrique Cerezo recently revealed the club would have to pay an extra fee - reportedly £5m - to use the keeper if they were to face the Blues either in the semi-final or the final, after Chelsea inserted a special clause in his loan deal.
However, Uefa have released a statement dismissing the clause, meaning that Courtois will be eligible to play against his parent club after they were paired with Diego Simeone's side in the semi-final.
But, according to Marca, the private agreement reached between both clubs - which includes the conditional clause - has other ramifications for the continued loan agreement of the highly-rated Belgian goalie.
Before controversy over the Champions League clause erupted, Atletico and Chelsea had agreed a loan deal to extend Courtois' stay in Spain until 2016. But all that could now be jeopardised because of a single match.
The present arangement as it stands means Atletico would have Courtois on loan for the next two seasons until 2016. Meanwhile, Mourinho will continue using Petr Cech as Chelsea's first-choice goalkeeper with Courtois returning in a deal that keeps him at Stamford Bridge until 2019.
The deal benefits all three parties; Atletico, Chelsea and Courtois, who feels a key part of Atletico as he is perfectly integrated at the Vicente Calderon since his loan deal three years ago – and has built a reputation as one of the finest shot-stoppers in Europe.