How Pep Guardiola's Barcelona beat Real Madrid 6-2 in history-making 2009 victory

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BBC Sport looks back at how manager Pep Guardiola's fresh tactics led to Barcelona's historic 6-2 win over rivals Real Madrid in 2009, during his first season in charge of Barca.

Guardiola's Manchester City side face Real in the Champions League quarter-final second leg on Wednesday.

Watch Pep Guardiola: Chasing Perfection on BBC iPlayer and you can delve deeper with an accompanying four-part podcast series on BBC Sounds - 'Sporting Giants'.

Available to UK users only.