Holland has praised the 25-year-old's application during his difficult opening weeks of the campaign.
"You can have a different relationship with the players as a coach or assistant, as opposed to the manager who picks the team and makes the major decisions," said the No 2.
"You're forever communicating with players. But in this case, it's a top professional footballer with a fantastic attitude.
"He trained yesterday and there's not a great deal to be said to Juan. He knows the score."