~snip~
You've used injury as an excuse but as a world class club and didn't barcelona have other players who have same capabilities as the main players? It's barcelona's problem. The club was losing in the game against real madrid and this is the fact.
Barcelona needs to perform as a professional club cuz it's world class club. Your excuse doesn't even make sense to blame the injury as the main problem of barcelona.
There are indeed some injured players in Barcelona. All those players are Xavi's first choice players so I think that also reduces Barcelona's strength. That's Real Madrid's advantage, they can take advantage of that and win big. Indeed in a big team ideally the first and second players have the same quality. But not all clubs can be like that, even Barcelona. So injuries are an unpredictable factor and this is sometimes the reason that many coaches lose matches.