In his last fight, he lost his crown and was defeated on a controversial split decision awarded to Japanese challenger Koichi Wajima in Japan.
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Bossi captured the junior middleweight crown from American Freddie Little on a unanimous 15 round decision on July 9, 1970.
Carmelo Anthony | Carmelo Bernaola | Umberto Bossi | Óscar Carmelo Sánchez | Giuseppe Bossi | Carmelo Garcia |