Actor, former Governor of California and the legendary 'Terminator', Arnold Schwarzenegger spoke on 'Cadena COPE' and made it very clear that Cristiano Ronaldo is such a great footballer because of his fantastic physique.

Schwarzenegger will present and give the starting orders at next Sunday's prestigious Reebok Spartan Race at the Casa de Campo Exhibition Centre. The prestigious obstacle race has become a sporting phenomenon in the U.S.A.

'Terminator' touched on football and talked about Cristiano Ronaldo, explaining why the Portuguese is one of the best players in the world. "He has a fantastic physique and great abs. He's in amazing shape. That's why he's such a great footballer," he said.

"I don't think he's interested in competing in Mr Olympia. Ronaldo wants to be the best player in the world and what I wanted was to win the Mr Olympia title. They're two very different sports," explained Schwarzenegger.

When asked which muscle is the hardest to develop, Arnold Schwarzenegger responded: "Each and every body is born with its own assets, its own strengths and weaknesses. I found it very easy to develop my biceps and my chest, but harder to improve my calves and thighs. Other people however, find it very easy to get the best out of their thighs and calves, but they struggle to improve their triceps or biceps. Everybody is different."