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John Wisniski Jr.
John Wisniski Jr.
John Wisniski, Jr. is an American professional wrestler, better known as Greg "The Hammer" Valentine. He is the son of wrestler Johnny Valentine. In the course of his career, which has spanned over four decades, Valentine has held more than 40 championships, including the NWA United States Heavyweight Championship and the WWE Intercontinental Championship. An alumnus of WWE and World Championship Wrestling, he was inducted to the WWE Hall of Fame in 2004.
Known for
6.7WrestleMania
1985
6.4WrestleMania II
1986
7.4WWE WrestleMania III
1987
WWE Rampage '91
1991
Midnight Massacre
2025
7.8The Greatest Wrestling Stars of the '80s
2005
7.8WWE Survivor Series 1989
1989
7.0Chris Jericho's 30th Anniversary Celebration
2020
7.1WWE Royal Rumble 1991
1991
7.3WWE: The History Of The Intercontinental Championship
2008
7.5WCW World War 3 1997
1997
4.0The British Bulldogs
1986
7.3WWE WrestleMania V
1989
7.2NWA Starrcade 1983
1983
The Best of the WWF: volume 20
1989
8.4WWE Survivor Series 1987
1987
7.3WWE WrestleMania IV
1988
6.7WWE SummerSlam 1989
1989
NWA The Final Conflict
1983
10.0WWE: The History Of The WWE Championship
2006