Born Jonathan Anthony Wisniski, he is better known as Greg "The Hammer" Valentine, the son of professional wrestler Johnny Valentine. Although Greg "The Hammer" Valentine wrestled for many wrestling promotions, including Mid-Atlantic Championship Wrestling and World Championship Wrestling (WCW), his longest tenure was with the World Wrestling Federation (WWF) from 1975, 1978-1979, 1981-1982, 1984-1992, and 1993-1994 where he would capture the WWF Heavyweight Intercontinental Championship and the WWF World Tag Team Championship.
Greg Valentine's Madison Square Garden Debut
New York City, New York
April 14, 1975
HBO
Greg "The Hammer" Valentine vs Bob Backlund
Madison Square Garden
February 19, 1979
MSG Network
Greg Valentine
Madison Square Garden Promo
Aired October 3, 1981
USA Network
Greg and Julie Valentine Interview
Tuesday Night Titians
Aired July 16, 1984
USA Network
Greg "The Hammer" Valentine vs Hulk Hogan
Madison Square Garden
July 23, 1984
MSG Network
Greg "The Hammer" Valentine vs Tito Santana
Madison Sqaure Garden
January 21, 1985
MSG Network
Greg "The Hammer" Valentine vs Ricky Steamboat
Madison Square Garden
June 21, 1985
MSG Network
Greg Valentine at the Boston Garden
Junk Yard Dog Promo
June 22, 1985
WWF on NESE
Greg "The Hammer" Valentine vs Davy Boy Smith
Madison Square Garden
October 20, 1986
MSG Network
Greg Valentine vs The Blue Blazer (Owen Hart)
Boston Garden
April 22, 1989
WWF on NESE
