I've gone for Barrera in Round 5.

I think early on Khan will box super cautiously and to the Roach gameplan. Barrera will look to spring the counter shots but not have much joy early on.

If Khan can stick to his boxing for the whole fight then he can win but he can easily get disrupted and thrown out of the plan and Barrera however faded has the experience and skill to unsettle Khan and make him fight his fight.

Due to size and his obvious boxing ability Khan should win comfortably against the smaller, shopworn Barrera but Barrera still has an excellent fighting brain and hopefully the hunger to see this through.

I would hate to see another Graham Earl episode - Earl just seemed a shell once he was in the ring though seemed a tough test going into the fight.
Sometimes the years of fights and toil catch up with a fighter and Barrera has had a long and tough career.

I have no confidence in Khans ability to take a punch whatsoever and see him getting tagged by a counter - Limond style. Only Barrera will finish him off.