If Duran is going the other way for say £20 million I suggest we bump up both transfer fees by £20 million to create a profit now and spread the extra cost over 5 years. Then keep Luiz.
Maatsen had a £35m release clause in his Chelsea contract, but Villa have agreed to pay slightly more in order to secure a more favourable payment schedule.
From what's been posted online elsewhere, the release clause only applied if the buying club was Borussia Dortmund and had, in any case, expired.I seem to recall we gave Coventry more than the release clause for Dublin to see off interest from Blackburn, which was amazingly un-Douglike.