Barcelona coach Xavi says their Europa League playoff with Manchester United can reinforce his team's reputation.
Barca host the first-leg tomorrow night.
Xavi said, "It is always important to win, especially in Europe. We come from seasons without achieving success and we have the objective of performing at the highest level.
"Manchester United will present us with a very intense and physically demanding match.
"We are at Bara and the challenges are weekly.
Every week seems decisive. This is Barcelona. The people are very excited, but we are working with humility to go far in all competitions. Every commitment is a test. The one on Sunday against Cdiz, too. All encounters are important. This is so. You have to go game by game."