Where have you seen that? There’s nothing on their twitter feed?
http://athletic.elcorreo.com/laporte-jugara-ante-20180126130543-nt.html
Put on their website very recently. My Spanish isn't great but I've translated what I can.
Laporte will not play against Eibar tonight according to sources after both Manchester City and the player told Bilbao that they want the transfer done soon. It's very probable that the clause will be deposited on Monday, not today. City have had people in Bilbao working on it since Wednesday. We're calm because we don't need him for the Cardiff game anyway. He'll sign a six year contract.