I don't know how much you know about Liverpool's history, but if you haven't heard of him, google Tommy Smith. Bit of a hard nut.
Smith used psychological ploys to threaten and intimidate opposition players.
[43] That said, he certainly had the respect of his peers, with fellow professional
Jack Charlton once saying "Tommy Smith was easily the hardest player I faced. I ran into him once and he knocked every ounce of breath out of me. I tried to get up and look like he hadn't hurt me, but he had."
[44]
Manager
Bill Shankly once said of him: "Tommy Smith wasn't born, he was quarried".
[45]
Smith was nicknamed "The Anfield Iron" and it was said that "Merseyside mothers kept his picture on the mantelpiece to keep their kids away from the fire". A common story stated that he "missed the 1978 European Cup Final after tripping on a pickaxe and injuring his foot. The pickaxe was a write-off"