Terrible Tim Witherspoon (1985) vs Donovan Razor Ruddock (1990) who wins?

I think this would be a very competitive fight. I see it going like this, they pretty much go back and forth till the late rounds where Witherspoon gets through with a huge overhand right that rocks Ruddock. Witherspoon follows up whacking away on Ruddock with everything he has stopping Ruddock.