Real are yet to drop a point at home in the league, following their 4-2 win last night.
Cristiano Ronaldo was sent off after having recieved two yellow cards in the game.
Valdano told Marca: “Ronaldo is a very passionate man, who has a positive effect.”
“His energy drives the team forward.
“But it can also make him make mistakes like taking his shirt off after scoring.”
He added: “We had to fight until the end.”
“If you do not take advantage on the scoreboard, they can always hurt you.
“Thanks to the fans and the talent of the team, we got the three points we deserved.”