Question: Who is most respected for giving the man ranked as the sixth best active boxer one of the toughest fights of his career?
Sentence (from "Guillermo Rigondeaux"): He has held multiple world championships at super bantamweight, including the WBA (Super) and lineal titles since 2013, and previously the WBO and "Ring" magazine titles between 2013 and 2016.
Relevant evidence: No