Vladyslav Sirenko Knocks Out Otto Wallin in Final Second at Madison Square Garden

Ukrainian heavyweight Vladyslav Sirenko defeated Swedish veteran Otto Wallin by knockout with one second remaining in the 10th round at the Infosys Theater inside Madison Square Garden, New York, during the debut event of Dana White’s Zuffa Boxing promotion.

Sirenko delivered a straight right followed by a crushing left hook that left Wallin unconscious. Medical personnel entered the ring, and Wallin was removed on a stretcher and taken to a hospital for observation. His trainer later confirmed that the boxer was stable while further tests were pending.