Mike Tyson surprisingly named Jose Ribalta ahead of Lennox Lewis and Evander Holyfield as the only fighter who could take his devastating power.
The 55-year-old ex-boxing superstar was widely revered for his ferocious in-ring ability and punching power during his illustrious career.
And Iron Mike faced a tricky test when he came up against Ribalta in 1986 in Atlantic City, New Jersey.
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Tyson, who was 26-0 at the time, managed to finally seal a TKO victory in the 10th round of his fight with Ribalta.
The Baddest Man on the Planet has clashed with heavy-hitters like Lewis, Holyfield and Frank Bruno in his glittering fighting career.
However, the former undisputed champ argued that Ribalta "took everything and kept coming back for more."
Iron Mike told Ring Magazine: "I hit Jose Ribalta with everything, and he took everything and kept coming back for more.
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"Jose Ribalta stood toe to toe with me. He was very strong in the clinches."
Only three months after the Ribalta fight, Tyson would destroy Trevor Berbick in a second-round TKO win to become the youngest heavyweight champion in history.
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The boxing legend fought Holyfield in back-to-back mega-fights in the 1990s and lost on both occasions, one of which ended as a result of Tyson's infamous ear bite.
Tyson also fought Bruno on two separate occasions -- winning both times in 1989 and 1996 -- while suffering a KO defeat to Lewis in their blockbuster 2002 super-fight.
But the boxing Hall of Famer believes that the toughest opponent he faced inside the squared circle was Holyfield.
"He threw terrific shots with both hands and with bad intentions," Tyson said.
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"Great champion: chin, heart, determination, work ethic, demeanour."
Featured Image Credit: Hotboxin' with Mike Tyson/PATopics: Heavyweight boxing, Mike Tyson, Boxing, Lennox Lewis