Real Madrid boss Jose Mourinho is eager for fans not to get carried away with their impressive preseason form.
Having taken over Porto midway through the 2001-02 season, he won the league the next year and added a further domestic title and the Champions League in 2003-04. He then left for Chelsea and added back-to-back Barclays Premier League titles.
"Football is not mathematics and nobody can guarantee this will happen this season, but my second seasons are always better," he said.
"The results of pre-season are not the most important thing. The good thing is taking shape. Winning is nice because you travel happier.
"It was good training for us because the league starts soon and we are gathering pace and intensity. After playing against American and Mexican teams, it has been good to come and play in Germany."
