The `Transformers: Dark of the Moon` actor won prizes for his ball control when he was a teenager and insists his skills are a "big thing" because he can handle complex moves.
He said: "I started out as a juggler. I came second in the international juggler`s competition and the junior division in 1982 or 1983.
"I can juggle five balls at once. It`s a pretty big thing most people can do three, but when you get into five then you`re in a different league."
While he was previously a juggler, the 45-year-old star insists he wouldn`t give up acting now because he has learned to deal with the tough parts of his profession - and doesn`t know what else he could do.
Asked if he ever considered giving up acting, he told Britain`s ELLE magazine: "It`s a very difficult profession - you have to deal with rejection constantly.
"You have to learn not to take things personally and to keep improving yourself, but you need constructive criticism to grow.
"Also, I never qualified in anything else. At this point, I just don`t know what I would do."