There are a lot of myths floating around regarding Carvalho.
The first one regarding him having CL experience is not true; he played for the Benfica first team on 7 occasions all of which were league games.
The biggest one is the amount we paid for him which, despite being reported in the media as 15m euro was officially reported by the club as a record but no fee was mentioned:
https://www.nottinghamforest.co.uk/news/2018/june/forest-agree-double-signing/
People tend to forget that Carvalho and Goncalves came as a pair; we purchased one and loaned the other with an agreement to buy if we wanted; Goncalves did have CL experience by the way.
I would guess that the 15m originally quoted was for both once the Goncalves deal was completed which did not happen; the reports in the Portuguese press at the time certainly read like that was the case.
There is certainly nothing in our accounts to indicate we paid anything like 13m for one player, not that it is easy to isolate one deal from all of the figures; however, deals of such a nature would usually be reported in the Directors notes, they are noticeable by their absence.
The only thing we can be absolutely certain of is that he cost more than 6m
There is something else which has not been reported over here; Benfica have a 25% sell on clause in the deal.