Dillian Whyte exacted his revenge -- and regained his WBC "interim" title belt -- in emphatic fashion as a huge right hand followed by a violent hook to the jaw scored the fight's only knockdown and ended matters at the 2:39 mark of round four.

Alexander Povetkin, who looked every day of his 41 years thanks to his horribly unsteady legs -- regained his feet by the count of four, but the fight was stopped moments later when Povetkin's corner threw in the towel.

Whyte averaged only 32.8 punches per round but he made the most of them thanks to his exceptional accuracy in all phases (44% overall, 38% jabs, 50% power) while the phlegmatic Povetkin could only generate 18 punches per round and struggled to hit the mark (11% overall, 10% jabs, 12% power).

Whyte's exceptional jabbing (17.8 attempts/6.8 connects per round to Povetkin's 5.0/0.5) set the table for the rest of his offense, which helped him forge leads of 57-8 overall, 27-2 jabs and 30-6 power.