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Roman González was the world's best active boxer, pound for pound, according to The Ring and ESPN from September 2015 to March 2017. This was due to his impressive record, which included wins over fighters such as Brian Viloria, Akira Yaegashi, and Juan Francisco Estrada. González's reign as the world's best pound-for-pound boxer ended when he lost to Srisaket Sor Rungvisai in a controversial decision in March 2017.