Leganes are favourites to sign Real Madrid goalkeeper Andriy Lunin.
Marca says Lunin will join Leganes on a season-long loan.
It's likely that he will arrive at the club as their new starting goalkeeper and it's impossible to put a value on 38 games in LaLiga Santander for a young player.
Rayo Vallecano and Real Valladolid were both interested too, however the club has opted to accept Leganes' proposal for the simple reason that they believe he will play the most games there.
Keylor Navas will not give up his starting shirt without a fight, thus making it difficult to accommodate Courtois to this point.