<Tr> <Th> Weather </Th> <Td> Partly cloudy 20 ° C (68 ° F) 38% humidity </Td> </Tr> <Tr> <Td_colspan="2"> ← 2011 2013 → </Td> </Tr> <P> The 2012 UEFA Champions League Final was a football match which took place on Saturday, 19 May 2012 between Bayern Munich of Germany and Chelsea of England at the Allianz Arena in Munich, Germany . The match was to decide the winner of the 2011--12 season of the UEFA Champions League, Europe's premier club football tournament . Bayern were making their ninth appearance in the competition's final, having won four and lost four, most recently losing in 2010 . Chelsea were appearing in their second final, having lost their first in 2008 . </P> <P> It was the first Champions League final to be held at the Allianz Arena (known as Fußball Arena München for the final). As tenants of the Arena, this meant Bayern were the first finalists to have home advantage since 1984 . Both teams progressed to the knockout stages by finishing top of their group . Bayern then beat Basel, Marseille and Real Madrid to reach the final, while Chelsea knocked out Napoli, Benfica and defending champions Barcelona . </P>

What year did chelsea won the champions league