Barcelona's first defeat after 28 matches in all competitions! Find out the reason for which Guardiola is not angry!

Barcelona qualified in the Spanish Cup semi-finals ,despite the fact that they lost the match against Betis Sevilla with 3-1. The Catalans had imposed themselves with a resounding score of 5-0, so they reached in the semi-finals of the competition without much trouble.
However, the failure in the Cup interrupted an amazing series : 28 matches won in any competition.
The coach Josep Guardiola is not mad at his students after the match with Betis and sees the bright side:
"The defeat in the match against Betis will help us grow.We will continue to meet this kind of teams. In three weeks we'll have to play with Arsenal and it is not going to be easy. This failure shows what sport really means and that a championship is not won from January or February. The defeat will help us to be more careful in the following matches in the championship and the league", said Guradiola.