In round nine, Buatsi completely gave up defending against Smith’s right hand and was peppered with the same predictable blow to make it a clear round for the 30-2 veteran.
Suddenly, with ten seconds left of the one-sided beating, Buatsi landed a huge left hook and it was Smith who was buzzed and struggling and glad to hear the bell.
Buatsi ate three scything right hands in the eighth that forced him backwards but, just before the bell, it was Smith who had to stagger backwards, onto the ropes, when he was tagged back with a reverse one-two.
Smith was forced into the backfoot but it was from there that he landed a right hand and left hook that wobbled Buatsi.
Smith enjoyed his best round in the fifth after Buatsi made a horrible start.