Mike Tyson is often described as the most powerful KO artist in boxing history.
But trainer Freddie Roach insists Manny Pacquiao packs the hardest punch in the game.
The Philippines Senator is nearing the end of his illustrious career at the age of 41 but is still showcasing his talent in the ring.
And Roach has paid him the ultimate compliment, labelling Pacquaio's punch harder than Tyson's.
The trainer, who has worked with both boxing greats, said Pacquaio's punches have all elements needed; power, speed and explosion.
“My whole body went like numb. The power, the speed and explosion is much greater than just dense power,” Roach said when asked why he thinks Pacquiao hits harder than Tyson.
“Manny is one of the few people who has both."
Another man who reckons he is the hardest hitter is Deontay Wilder.
The WBC heavyweight champion has often called out Tyson, insisting he can throw a meaner hook than his fellow countryman.
But when asked who would win between Tyson and the Bronze Bomber, boxer Shannon Briggs had a simple reply.
“Tyson will win! (Are) you crazy?” the 48-year-old said.
“Before you go in the ring with Mike Tyson, you lose everything you win in the training camp out of fear."
Wilder has clashed with Tyson in the past when he insisted that he sang his praises during his fight against Luis Ortiz, but would never say it in public.
“I had some people sitting by Mike [at my fight]. Mike gave me some praises, which I wish he would have said in public,” Wilder said.
“Behind closed doors is cute and s***, but out in public?
"Just express yourself. I don’t know what the deal is with the old generation, new generation.
"Like, the old is the past, bro. Let it go."