Cristiano Ronaldo dos Santos Aveiro, commonly known as Cristiano Ronaldo, is a Portuguese footballer who plays as a winger or striker for Spanish La Liga club Real Madrid and is the captain of the Portuguese national team. In addition, his contract with Real Madrid, in which he is paid €12 million per year, makes him one of the highest-paid footballers in the world, and his buyout clause is valued at €1 billion as per his contract. Ronaldo became Manchester United's first-ever Portuguese player when he signed for €15 million(£12.24 million) after the 2002–03 season. In August 2010, Ronaldo reached 10 million fans on Facebook and in doing so made history by becoming the first non-American personality ever to achieve that kind of success on the social networking site
Who is the greatest grass court player?