Biography
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.
TV credits
Rated 7.4 out of 10
Biography: WWE Legends
2021
Rated 8.6 out of 10
WWE's Most Wanted Treasures
2021
Rated 7.4 out of 10
Undertaker: The Last Ride
2020
Rated 8.0 out of 10
All Elite Wrestling: Dynamite
2019
Rated 0.0 out of 10
AWF Warriors of Wrestling
1995
Rated 6.8 out of 10
Raw
1993
Rated 0.0 out of 10
Clash of the Champions
1988
Rated 6.8 out of 10
WWF Wrestling Challenge
1986
Rated 7.4 out of 10
WWF Superstars
1986
Rated 8.3 out of 10
WWE Saturday Night's Main Event
1985
Rated 9.0 out of 10
Tuesday Night Titans
1984
Rated 0.0 out of 10
WCW Arena Shows
1983
Rated 0.0 out of 10
Mid-Atlantic Championship Wrestling
1981
Rated 0.0 out of 10
WWF All-Star Wrestling
1975
Rated 0.0 out of 10
WWE Old School
1973