On May 12 2012, Borussia Dortmund were crowned German Cup champions with a thumping 5-2 victory over Bayern Munich. The hero of the day was Dortmund hitman Robert Lewandowski, who smashed three past Germany's most successful club. Goals from Franck Ribery and Arjen Robben were not enough for Bayern, who will be looking to get their revenge when the Bundesliga rivals battle it out again for the Champions League title this month?