Boxing knockouts are the most explosive and violent moments in professional boxing, a single punch that changes everything. The most brutal and decisive way to end a professional boxing match, a knockout occurs when a fighter cannot rise before the referee's 10-count — or is stopped outright by TKO. From Deontay Wilder's 42 relentless heavyweight knockouts to Mike Tyson's ferocious 44 stoppages, these devastating one-punch finishes define boxing careers and create world champions in an instant.

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