Vinny Paz (Pazienza before he legally changed his name in 2001) holds on to grudges, even during induction weekend at the International Boxing Hall of Fame in Canastota, New York. 

The former lightweight champion (50-10, 30 KOs), of Cranston, Rhode Island, spoke highly of Hector Camacho, Roger Mayweather, the late uncle of Floyd Mayweather Jr., saying he "grounded me to a pulp, said Roy Jones "was just fast like lighting, you couldn't even see punches coming from him" and called even an aged Roberto Duran "unbelievable."

Paz lost to them all handily, except Duran, who was in his mid-40s and fighting far above his deal weight.

Paz, however, changed gears when Greg Haugen emerged. He reserved all the smoke for his 130- and later 140-pound foe who passed away at 64 earlier this year to cancer. 

"I hate him," Paz told The Ring. "I know he died, but I still hate him. I beat him two out of three."

Paz won the IBF title for the first time in 1987 by decision over Haugen and lost it back to him a year later, both results unanimous decisions.

Paz moved up later in '88 to take on Mayweather for the WBC super lightweight title and was streamrolled by unanimous verdict. He lost again in 1990 to Camacho for the WBO version at 140, but he achieved revenge against Haugen six months later by winning a decision in a non-title bout. 

On Dec. 15, 1992, Paz had his most stirring victory. It wasn't for a belt and the opponent was Luis Santana, a former champion who entered with 14 losses. Paz pitched a shutout in the 10-round bout.

About 13 months prior, Paz had broken his neck  in a near-fatal car crash when he was 28. He had four screws in his forehead, a halo and a steel rod in his spine. 

The story turned into a 2016 movie, Bleed For This.

He wishes Haugen were still around, only so they could scrap again.

"I beat him in the last three rounds," Paz said of the first bout, before championship fights were scaled down from 15 rounds to 12. "That's balls to the walls. You got 13, 14, 15 rounds, that's torture. I beat him.

"I hate this guy. ... I hate him. Can't stomach him."