It can be done, provided the fighter is dedicated to changing. At the end of the day, Ricky Hatton doesn't believe that he needs to change. He steps in the ring and thinks he's fighting Kosta Tszyu. It's ironic that the defining moment of his career is also the start of the decline, but from that day on Ricky seems to have decided that there's only one way to win a fight.
Juan Manuel Marquez changed from a pure counter-puncher style to a more aggressive crowd pleasing counter-puncher. You could see it as a half change.
Floyd Mayweather enjoys showing his defensive skills like other fighters enjoy being aggressive and going threw the gears trying to take their man out in devastating fashion. That is the difference between a defensive fighter and an offensive fighter. You have to enjoy what you do, because when push comes to shove you will always revert back to fighting the way you like to fight. You must have the instincts of a defensive fighters to fight a defensive fight. You must enjoy dictating the fight with your counter punching skills,defence. That is what Hopkins/Mayweather like to do and that is why they dont get frustrated when its not pleasing on the eye for the fans. Other fighters with aggressive instincts like to dictate with their aggression and activity.
Impossible to really change a style completely. Only in Rocky 3 could Rocky go from being a slugger to a boxer and be effective. In real life that is like Tyson getting on his toes and boxing. Ridiculous.
Hagler was a boxer-puncher for most of his career, 60+ pro fights, and turned aggressive slugger for his fight with Tommy Hearns, a legitimate great in/near the prime of his career. And it's the most famous and perhaps greatest win of his career. B-Hop became much more of a cautious boxer, selective with his punches, at a measured (okay, dull) and slow pace as he got older. It may not be common, but yes, it is possible.
Yes it is. But it requires discipline. Look at how much Hopkins has changed over the years. He was by nature an aggressive fighter, but eventually became a more defensive fighter. Roberto Duran went through a drastic changes as a fighter. Compare a few of his earlier lightweight fights with his fights against Palamino and Ray Leonard. There are countless examples of a fighter changing their style.
Didnt Ronald Wright changed his styles after that beating he got from Julio Cesar Vasguez? I mean high guard etc? he seemed alot wild and aggressive before that fight, thou he fought mainly poor opposition before that fight.:think
Sugar Ray Leonard was mostly a flat-footed boxer, but did a lot of boxing on his toes and on the backfoot for the Duran rematch, and Hagler fight. Naturally, some fighters will change their styles, or tweak it, based on the opponents they are facing. George Foreman was more of a patient technician as an old man.
yes it is possible to change styles. underated is the aggresive joe frazier becoming a slipping rolling counter/slugger against foreman in th ereatch and did a pretty good job...oh ....oh no.....not..the uppercut....not the uppercut...anything but (insert footage of george landing an uppercut that lands on joes chin who in turn gets flown back into the corner). but still pretty good style change up. winky wright to me is unretraceable from his aggressive walk them down style with a heavy HEAVY jab and snappy left cross. from his kinda flashy twinkle tes style. simon brown coming from hard headed brawler to an aggressive james toneyesque counterpuncher. cemented with the norris masterpiece. actually thinking about it, alot of the early to mid 90's 154 pounders had mad changeups. norris went from stick and move jab-cross fighter. then added a left uppercut got more active on the inside and used his right cross and left hook to the bod and became a offencive dreadnaught. also vincent pettway who was a kinda dancer non commiter for most of the fight then threw a lazy rigth hand and a jab to catch his opponants and win the round to a jab and move counterpuncher. gatti's reformation by buddy tho is a perfect example of reinstructing a boxers instincts. gatti's perfoamance over durin was a great showing of footwork, heavy left hands, shoulder rolls and then changing up combo's.