I think when the first bell goes Khan is an obvious class apart from Collazo in speed and movement. Collazo looks like what he is, which is a late thirties guy who retired for two years, is making an unremarkable comeback and is basically a welterweight gatekeeper.

I think Collazo hangs in there though and eventually catches Khan with something substantial. At this point a fight breaks out and we actually get an exciting fight on a Floyd bill.

I do think Khan is basically done at the top level but Collazo isn't a top level guy. And Khan's fragility will ensure he's drawn into a brawl. I can see him adding another classic to his career sparking highlight reel in this fight.