I am english so i am trying to be optimistic :/ Does he have any chance? What does he need to do to have any chance of beating martinez?
Approximately zero. Martinez is in a different class. Barker's best chance would be fighting outdoors, then he could at least hope Sergio got struck by lightning.
im not expecting him to win but there is no way im gonna say he has no chance he is quite skilled and i think can make sergio miss and maybe frustrate him this isnt a fight to look over
I'd say he's tough enough to go some rounds with Sergio, but not good enough to win many of them and he will be wore down over the fight, although Sergio has good power, its usually not a one punch goodnight, that was a rare case with Williams. He's more of a boxer and will frustrate the **** out of Barker with his movement and odd angles. In my opinion anyways.