Boxing 's knockout king Gennady Golovkin has claimed he now wants to beat his next opponent by going all 12 rounds , rather than inflict the 30th stoppage of his burgeoning career . The Kazakh warrior is on the brink of becoming boxing 's next superstar after causing a trail of destruction . In his 32-fight career , Golovkin has 29 knockouts , meaning his 90.6 per cent KO rate is the highest in the history of the middleweight division . Golovkin 's next opponent will be Willie Monroe Jnr on May 16 in Inglewood , California - just three months after his latest brutal KO , of Britain 's Martin Murray in Monaco . And the IBO/WBA and WBC interim middleweight champion said he hoped to be taken the distance for the first time in 20 fights and seven years . Gennady Golovkin ( left ) faces off against Willie Monroe at a press conference ahead of their fight . Boxing 's knockout king said that he wanted to win over 12 rounds rather than by his trademark stoppage . Golovkin gives the thumbs up , and the WBC have done the same for his hopes of fighting Miguel Cotto . ' ( Monroe ) is great opponent for me . I need a decision fight , ' Golovkin told Seconds Out . ' I need to win by decision in a big fight . ' Asked if that means he hopes Monroe will last the full distance , Golovkin said : ' I hope so - my goal is to beat any style . He has good style . ' He added : ' ( Monroe ) is southpaw , he is a very smart guy . Every champion has trouble with a southpaw . ' Golovkin has amassed an incredible 29 knockouts in 32 middleweight fights . Britain 's Martin Murray ( right ) was the latest victim of Golovkin 's phenomenal power . The 32-year-old Kazakh is calling for a middleweight unification fight against WBC champion Cotto . The other leading middleweights have been reluctant face up to Golovkin 's awesome power - the 32-year-old is now widely regarded as the biggest pound-for-pound puncher in the business . But Golovkin has his sights firmly set on Miguel Cotto , unless Monroe ( 19-1 , 6 KOs ) is able to pull off a huge upset . VIDEOS : Watch Golovkin face off with Monroe and call out Andre Ward . 'Miguel is WBC champion , I have the interim belt . ( A fight would be ) very good for us , ' he said . 'He is a great name , Miguel is a big name . I respect him , he is a great champion . ' And the WBC last month ordered Cotto to take their world middleweight title into a unification battle with Golovkin . He was told to do so within three months of a voluntary title defence this spring , against an as-yet-unnamed opponent . 'We have instructed Miguel that he must fight Gennady , as his mandatory challenger , next after his April fight , assuming of course that he wins , ’ said WBC president Mauricio Sulaiman . Willie Monroe Jnr ( right ) is the man tasked with standing up against the brutal Golovkin . Miguel Cotto ( right ) is in the sights of Golovkin for a middleweight title unification bout .
Gennady Golovkin fights Willie Monroe Jnr in last month . The Kazakh is hardest pound-for-pound puncher is boxing . But he wants to prove his greatness by winning over the full distance . Golovkin wants unification fight against WBC champion Miguel Cotto .