Boxing is a shadow of the sport it once was, this is especially true for heavyweights. Mostly because potential boxers discovered there are many better sports to make a living it, I think.
Watch some of the great fights from the 70s and 80s - Norton v Holmes, Ali v Frazier 1 etc and anyone would realise how awful it now is.
I pay no attention to it at all anymore and watching about 30 secs of that fight showed me why, again.