Muhammad Ali in 1966 with former World Bantamweight champion Johnny Coulon.





Johnny had a trick the trick was he would bet you that you could not pick him up, well there's some nerve in your neck if you pinch it just right and add pressure you can't pick up anything. Hundreds  of great fighters like Jack Dempsey, Joe Louis, Sonny Liston all the great fighters of the era, Sugar Ray Robinson, tried to pick him up and you'd see his hand on their shoulder all around their neck administering the Johnny Coulon neck pinch!