In a career of more than 40 years, Rodney Berman has worked with all kinds of participants in the sport of boxing. One of the many decorated boxers with whom he has worked is the current king of the medium weights, the Kazakh Gennady Golovkin . Berman did not hide that he was pleased to work with the middleweight champion, as he told Exclusive to World Boxing News a week earlier between Golovkin and Saul 'Canelo' Alvarez. And here we share it with you. "Let me tell you that all of your team and Golovkin is also probably the nicest fighter I've known in 40 years ," Berman told Exclusive to World Boxing News . "With what he has achieved and his general attitude, it is not a big deal, he is always smiling and always attentive to what you need." He is guided by Tom Loeffler , who is also a gentleman, so it has always been a pleasure to deal with them. In fact, in my career I would qualify him as the best fighter I had the privilege to work with, we had some really good fighters under our wing, Shane Mosely and the list goes on. " "I'm not a coach, but having been involved so long, a promoter starts to see things that the camp can be blinded and the press does not see, I hope I'm wrong and I would not like anything more than Golovkin to win, but as I say to see his last fight or two, it's definitely not the Golovkin I saw five years ago. " Canelo was recognized earlier this year after failing an anti-doping test in the run-up to the rematch scheduled for May 5. Speaking beyond his prediction of Canelo to win this fight, when asked if that detail would take relevance in the rematch, and Berman replied: "No, I do not think so." The press tends to make it bigger than it is, but I doubt it has any effect on the fight itself. " Canelo did not pass his anti-doping test and he was found in the cupboard the banned substance clenbuterol and claimed that it was due to contaminated meat. Clenbuterol and performance enhancing substances are becoming common in the sport of boxing and Berman says it's hard to notice. "No, I did not see it coming, to be honest, I did not follow it deeply and there are so many athletes today who are taking forbidden substances that are very borderline, it is more the rule and the norm now, you just notice it now, with all the athletes in any sport, "he concluded. "Unfortunately, if my heart was in it, Golovkin would win the fight, but from what I saw in Golovkin five or six years ago in Monte Carlo and in his last fight: time is definitely catching up .. Unfortunately, I think Canelo is going to take this fight for points and possibly for a late stop, I do not think anyone agrees with me. "