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.
Cristiano Ronaldo had a glorious career in Manchester United, winning several major titles such as 3 Premier Leagues (2006-2007, 2007-2008, 2008-2009) and 1 UEFA Champions League (2007-2008) and the FIFA World Player of the Year award in 2008.