2021 KO of the Year: Valdez-Berchelt

Plus: The outstanding rest of the best big shots

When undefeated former featherweight titlist Oscar Valdez challenged Miguel Berchelt for his WBC junior lightweight world title on Feb. 20 inside the Top Rank bubble of the conference center at the MGM Grand in Las Vegas expectations were for a classic all-Mexican slugfest.

Instead, it turned out to be an utterly one-sided affair that ended with the unde…