22-year-old Matthias Schlitte began practicing arm-wrestling when he was just 16 years old and since then has been training only his right arm muscles.

Matthias? right forearm measures almost 18 inches in circumference, while his left one is all skinny, just like the rest of the bodybuilder. That?s actually one of his hidden weapons, opponents see his slim figure and underestimate him. But when his Popeye arm does its thing, they look at him with a lot more respect.