Ahn was hurt early in the bout and it was clear there was a huge gulf in physical strength, power and speed. Ahn tried to to put Tyson under pressure by getting close, and smothering the Japanese fighter's power. That tactic had some small success, with a headclash damaging Tyson slightly, but that success was very limited.
The power of Tyson always looked like too much, and in round 4 the Korean was dropped hard. He showed his fighting spirit by recovering to his feet but was counted out as he rose the referee svaing him from what could have been a rather painful beating.
The win will push Tyson up towards more notable competition, but questions will need to be asked of the OPBF who had Ahn highly ranked respite the fect he has fought just once in the last 2 years, and only twice in the last 4 years! Maybe it's the ranking committee took a long hard look at themselves as some of the recent match ups have been very disappointing, like wise Jack Brubaker's recent bout with Mark Sale.
(Image courtesy of boxingnews.jp)