Answer
Chelsea was the team defeated by Corinthians in the 2012 FIFA Club World Cup final. The match was played at the International Stadium in Yokohama, Japan, on December 16, 2012, and Corinthians won 1-0 thanks to a goal from Paolo Guerrero in the 69th minute. This victory marked Corinthians' second FIFA Club World Cup title, after their previous triumph in 2000.