But Tyson’s grueling training regime most probably contributed to his steel-esque, powerful neck muscles. At 18, Mike Tyson boasted an unusual 20-inch neck. Labeled a ‘Man-Child,’ he used to ...

NEW DELHI: At just 18 years old, Mike Tyson followed an intense workout routine that included a unique technique called neck bridges, which helped him develop a neck circumference of 20 inches.