This should be a routine defense for Kessler, unless unheralded and widely unknown Venezuelan and #1 WBA contender Gusmyl Perdomo can pull off a huge upset. So simply put: Who is Perdomo and what is his style, strengths, and weaknesses? Will he have any shot against Kessler other than a puncher's chance?
He is a rather dangerous opponent in a fight like that. But ok he is not a volontary opponent, but a no. 1 ranked challenger and mandatory, so I guess Kessler has to get on with it. It could be worse.