He comes across as a nice down to earn lad, who is very grounded. He also appears extremely dedicated and wants to be the best he can (all his gym mates say he is the hardest worker in gym). Also agree with people saying use of R word is revolting, people who use that to describe disabled people need a slap
It may just be a stammer. Thing is, he seems to speak through his nose as well - a classic sign. His accent has nothing to do with it. Who knows what damage he's taken out of the ring in the past?