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.
How did Cristiano Ronaldo start his soccer career? Ronaldo started playing football at the age of ten, for his village club in Meridia, from there he was sold to Sporting Lisbon and then to Manchester United, and now plays forâ¦ Real Madrid.