harrison after haye

[AdamGB]

How many awesome cruiserweights have gone on to be title holders in the heavyweight division?

I can only think of one other unified, undisputed champion who moved up to Heavy Weight.

I'm sure you know who I mean.

edit: and before anybody goes off on one - I'm not comparing haye to Holyfield, just pigeon holing a little answer to Lyles irrelevant question.

(Irellevant because haye is not Holyfield and vice versa... he is his own man and obviously should be judged as such)