Rivaldo
It’s almost impossible to argue with some of Rivaldo’s achievements upon his arrival at Barcelona in 1997.
He was arguably the second-best player in the world (behind Zinedine Zidane) for the next five years, and demonstrated a remarkable goalscoring record for a midfielder.
In three of his first four seasons at the Camp Nou, he scored 19 or more league goals, winning the Liga BBVA title in 1998 and 1999.
He would later win the Champions League with Milan in 2003, as well as the World Cup in 2002.