article_snippet: Manchester United had the most successful period in Manchester United history.
article_snippet: Manchester United won the title five times in the most successful period in their history.
article_snippet: Manchester United made the Champions League final three times in a four-year period, winning it once.
article_snippet: it would not be wrong to say Manchester United in that spell were second only to Barcelona in the world, and that Barca side under Pep Guardiola is the best club side I have ever seen.
article_snippet: In the years before Sir Alex Ferguson retired, Manchester United were phenomenal.
article_snippet: the best club side I have ever seen was arguably Manchester United best ever.
article_snippet: A few years ago the most successful United side in the club’s rich history dominated domestically and were the only side to challenge the brilliance of Barcelona.