I am the greatest!' And he wasn't wrong. With 56 wins, 37 of them by knockout, and 5 losses over a 21-year career, Muhammad Ali became our nation's most adored athlete and champion for both his prowess in the rink and his loveable arrogance outside. Own a piece of history with this authentic pair of Everlast boxing gloves hand-signed by the champ himself. A Steiner Sports Certificate of Authenticity is included.