Short answers, pulled from the story.
Ronaldo was nicknamed Il Fenomeno (or O Fenomeno), meaning "the phenomenon," a title given to him by the Italian press during his time at Inter Milan. He was also known as R9, referencing his jersey number.
Ronaldo won the FIFA World Player of the Year award three times, in 1996, 1997, and 2002. His 1996 win made him the youngest recipient of the award at age 20.
Hours before the 1998 World Cup final against France, Ronaldo suffered a convulsive fit. He was initially removed from the starting lineup and a team sheet with Edmundo as his replacement was submitted to FIFA. Ronaldo then pleaded to play and was reinstated by coach Mário Zagallo. Brazil lost the final 3-0. A parliamentary inquiry was launched in Brazil but found no wider conspiracy. Ronaldo was awarded the Golden Ball as tournament player despite his performance in the final.
On the 21st of November 1999, Ronaldo ruptured a tendon in his knee during a Serie A match against Lecce. During his comeback on the 12th of April 2000 in the Coppa Italia final against Lazio, he suffered a complete rupture of the kneecap tendons after just six minutes. His physiotherapist Nilton Petrone attributed the injuries to a condition called trochlear dysplasia, which made the relationship between the kneecap and femur unstable under the explosive demands of his playing style.
Ronaldo scored 15 goals in 19 World Cup matches across the 1998, 2002, and 2006 tournaments, for an average of 0.79 goals per game. His 15th goal at the 2006 World Cup was a tournament record at the time and broke the previous all-time record of 14 goals held by Gerd Müller.
Ronaldo became the majority owner of Spanish La Liga 2 club Real Valladolid in September 2018 after buying a 51% controlling stake for €30 million. In December 2021 he bought a controlling stake in his boyhood club Cruzeiro, investing 400 million reais ($70 million). He sold his Cruzeiro stake in April 2024.