#6 Greg "the Hammer" Valentine
Son of legendary Johnny Valentine, The Hammer is one of the legit, no questions asked tough guys in the wrestling business. Built like a fireplug, capable of brawling, and a master of technical wrestling thanks to his time in the famed Hart Dungeon, the Hammer made his way to the NWA in short order.
The Hammer's career really took off after a series of brutal Dog Collar Matches with Roddy Piper, where they were connected by a chain between their necks. Piper lost hearing in one ear, and Valentine's vision became a big blurred, but both men earned big paychecks and a stellar reputation for selling out arenas.
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Hammer made his way to the WWE, where he competed as the Dream Team with Brutus Beefcake. The duo would win the Tag championships, though later they split when Brutus went babyface. Valentine also had a brief run as IC champion.
Though Valentine never made it out of the mid-card in WWE, he was one of the most solidly booked athletes on their roster during his tenure. Valentine rarely lost, and was always portrayed as a legit tough guy. Here's a look at the Hammer facing fellow tough man Ron Garvin.