Question: What is the name of the boxer who fought in the 2009 Fight of the year and retired from boxing in 2011?
Sentence (from "Juan Manuel Márquez vs. Juan Díaz II"): Marquez, went to Diaz's hometown of Houston to face him at the Toyota Center in February 2009 in what turned out to be an all-action slugfest, one that Marquez won via ninth-round knockout.
Relevant evidence: No