as experienced as both fighters are, they haven't much experience going into the 5th rnd, one fight for each.
The fitness will be key, Justin faded in some epic toe to toe wars, but this fight won't be that. Khabib took a breather in the 3rd round v Conor in a fight he was dominating, can he afford to do that with Justin. Justin early in v Tony was trying to too hard to land the power punch, his corner had to tell him to reign it in and land the clean shots instead. He was a bit careless in that 2nd round, an out of sorts Tony caught him flush, being that careless v Khabib and you're taken down. Intriguing fight, grappling with Khabib will be very taxing, I see a good fight but Khabib stops him in 4th for me.