Question: The Ballon d'Or 1997 was awarded to a player with what nickname?

Context paragraphs:
Bidone d'oro: Bidone d'Oro, Italian for the "Golden Bin" or "Golden Trashcan", was a tongue-in-cheek prize given to the most disappointing player in Serie A at the end of each calendar year.  A play on Ballon d'Or, the European Footballer of the Year award, the winner was chosen through votes by listeners of the "Catersport" show on Rai Radio 2.  The prize was first awarded in 2003 to Rivaldo of Milan, and was discontinued in 2012 when "Catersport" went off the air.  The final Bidone d'Oro was awarded at the end of 2012 to Alexandre Pato following a vote on the discontinued show's Facebook page.

Ballon d'Or 2002: The 2002 Ballon d'Or, given to the best football player in Europe as judged by a panel of sports journalists from UEFA member countries, was awarded to Ronaldo on 12 December 2002.  This was Ronaldo's second Ballon d'Or, his first award was in 1997.

Ronaldo (Brazilian footballer): Ronaldo Luís Nazário de Lima (] ; born 18 September 1976), commonly known as Ronaldo, is a Brazilian retired professional footballer who played as a striker.  Popularly dubbed "O Fenômeno" (The Phenomenon), he is widely considered to be one of the greatest football players of all time.  In his prime, he was known for his dribbling at speed, feints, and clinical finishing.

FIFA Ballon d'Or: The FIFA Ballon d'Or (] , "Golden Ball") was an annual association football award presented to the world's best men's player from 2010 to 2015.  Awarded jointly by FIFA and "France Football", the prize was a merger of the FIFA World Player of the Year award and the Ballon d'Or, the two most prestigious individual honours in world football.  The FIFA Ballon d'Or was awarded based on votes from international journalists and national team coaches and captains, who selected the players they deemed to have performed the best in the previous calendar year.

Ballon d'Or 1964: The 1964 Ballon d'Or, given to the best football player in Europe as judged by a panel of sports journalists from UEFA member countries, was awarded to Denis Law from Manchester United, the first Scotsman to win this award.

Ballon d'Or 1960: The 1960 Ballon d'Or, given to the best football player in Europe as judged by a panel of sports journalists from UEFA member countries, was awarded to Luis Suárez on 13 December 1960.

Ballon d'Or 1986: The 1986 Ballon d'Or, given to the best football player in Europe as judged by a panel of sports journalists from UEFA member countries, was awarded to Soviet forward Igor Belanov on 30 December 1986.  There were 26 voters, from Austria, Belgium, Bulgaria, Czechoslovakia, Denmark, East Germany, England, Finland, France, Greece, Hungary, Italy, Luxembourg, Netherlands, Poland, Portugal, Republic of Ireland, Romania, Scotland, Soviet Union, Spain, Sweden, Switzerland, Turkey, West Germany and Yugoslavia.

Ballon d'Or: The Ballon d'Or (] ; "Golden Ball"), is an annual association football award presented by "France Football".  It has been awarded since 1956, although between 2010 and 2015, an agreement was made with FIFA and the award was temporarily merged with the FIFA World Player of the Year, and known as the FIFA Ballon d'Or.  Conceived by sports writer Gabriel Hanot, the Ballon d'Or award honours the male player deemed to have performed the best over the previous year, based on voting by football journalists.  Originally, only European players were in contention for the Ballon d'Or: in 1995 the award was expanded to include all players at European clubs and in 2007 to all players from around the world.

Ballon d'Or 1997: The 1997 Ballon d'Or, given to the best football player in Europe as judged by a panel of sports journalists from UEFA member countries, was awarded to Ronaldo on 23 December 1997.

Ballon d'Or 1961: The 1961 Ballon d'Or, given to the best football player in Europe as judged by a panel of sports journalists from UEFA member countries, was awarded to Omar Sívori on 12 December 1961.

Supporting paragraphs: Ballon d'Or 1997 Ronaldo (Brazilian footballer)
Answer: "O Fenômeno"