1 Required for building and repair of body tissues (including muscle) 2  Enzymes, hormones, and many immune molecules are proteins.  Essential body processes such as water balancing, nutrient transport, and muscle contractions require protein to function.
Previous Game. Player Profile. A much-vaunted prodigy when snapped up by Manchester United from Sporting Lisbon in 2003, Ronaldo is now, alongside Lionel Messi, the best-known player on the planet, and a hero for Real Madrid and Portugal.
Portuguese football star Cristiano Ronaldo was eight years old when he started playing soccer for the competitive amateur team Andorhina. Ronaldo's first professional club wasâ¦ Sporting Lisbon of the Portuguese Liga; he made his debut with Sporting in 1999 at the age of 14.