This happens every once in a while, as a general rule the best team wins but not always. We all have loses against inferior teams. Have you not heard of 4th division teams winning the cup in the uk or in france, they have a few freak results. my god look at the greek team that won the Euro in Portugal. its just a fluke, every once in a while you get that. im sure your team will be back to winning again the very next match.