FC Barcelona's move for Martin Braithwaite hasn't gone unnoticed and has garnered a lot of controversy not only in Spain but throughout Europe. This could see the rule changed as soon as next season but that won't mean much to Leganes and their fans this year.
After learning of Barça's intention to pay Braithwaite's buyout clause, Leganes asked LaLiga if they could be given permission to sign a replacement of their own. Any change of the rules would need to be approved by the RFEF, the Spanish FA, and it is impossible to change one midseason. It would need to be approved by another commission, the Assembly General and then the Directors Commission. A long and lengthy process.
The potential change would allow teams who lose a player to their buyout clause, outside of a transfer window, to be allowed to sign a replacement themselves. This is to avoid a situation currently facing Leganes who have lost their star forward and have their hands tied when it comes to replacing him.
However, Leganes are able to sign new players as they are currently under the 25-man squad limit. Yet their options are much more restricted and they are only able to sign players who are currently without a club.