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Greatest upsets of past 25 years

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Sonny Boy Jaro-Pongsaklek Wonjongkam

Photograph By AP Photo/Shuji Kajiyama

March 2, 2012: As shocking as Lopez-Ortiz was, this bout has it beat for upset of the year. Wonjongkam, who had made a division-record 17 title defenses in his first reign as flyweight champ, saw his second one ended on Jaro's furious sixth-round TKO.