But after Saturday's poor display by the Dutchman: Apparently Cas just got off the plane, quite distressed and tired at everything that happened in the last week after his family were having problems with the lifestyle of England.
Marcel went straight to the game after he got off the plane. And he asked for a substitution himself at halftime.
So now you know in brief, why Cas hasn't been performing that well of late so lets give him time.