Marcelo. On the left side of Real Madrid, the Marcelo-Ronaldo combo was also well-known. Marcelo was Cristiano's closest buddy at Real Madrid. They shared a room together when they first arrived at the club and have been friends since then. They were often involved in fights with other players because they were always trying to prove that they were better than them. In 2007, after Ronaldo scored his 100th goal for Real Madrid, he announced that he wanted to retire with Marcelo as his teammate. However, Ronaldo soon changed his mind and decided to continue playing for another season. At the end of that year, he and Marcelo ended up with two winners medals each. In 2008, Ronaldo finally retired from football after helping his team win the European Cup. He had many injuries during his career and used his retirement to focus on his health. Since then, he has been able to play only occasional matches for Portugal's national team. After retiring from football, Ronaldo started a food business with his brother. Today, they are one of the most successful food brands in Portugal. Ronaldo has also participated in several documentaries about his life and career so far. He has also written several books about his experiences as a player and has been involved in other business activities outside of football.