Sid Eudy, who performed in professional wrestling under the names Sid Justice, Sid Vicious and Sycho Sid, has died at 63 years old, according to his family.

Eudy’s son, Gunnar Eudy, announced the death of his father in a post on Facebook on Monday.

“I am deeply saddened to share that my father, Sid Eudy, has passed away after battling cancer for several years,” the post said.

“He was a man of strength, kindness, and love, and his presence will be greatly missed. We appreciate your thoughts and prayers as we grieve this loss. Details for a memorial service will be shared soon. Thank you for your support.”

Eudy has been considered by many professional wrestling fans as the top retired, modern-era professional wrestler who was not yet inducted into the WWE Hall of Fame.

Eudy was the world champion in WWF (now WWE) and WCW twice apiece, and was also a two-time USWA heavyweight champion.

He also wrestled in New Japan and had a brief stint in ECW in 1999.

One of his most iconic moments came when he hit Shawn Michaels with a powerbomb to defeat him for the WWF Championship at Survivor Series in 1996.

In the early 1990s in WCW, Eudy was a member of the fabled Four Horsemen stable, alongside Ric Flair, Arn Anderson and Barry Windham.

“Without Sid Vicious, I don’t think my brother and I would have made it to WCW,” professional wrestling legend Booker T wrote in a post on X.

“His impact on this business was undeniable, and he paved the way for so many of us. My deepest condolences to his family during this difficult time.”

Adam Pearce, the current general manager of “WWE Raw,” wrote, “Rest well, Sid. I’ll forever appreciate the good times. The microchip pitch to [David Marquez]! Making the sheriff’s dept drive 100mph+ from Tulsa to Enid with lights/sirens blaring only to get there when the show was over. NEVER EVER a dull moment. Life is too short. Godspeed.”

In addition to Gunnar, Eudy is survived by his wife of 30 years, Sabrina Paige, and their son Frank.