Question: Who was nicknamed Sergio, because his style was similar to someone who captains Real Madrid and the Spain national team?

full_context: Document 1: César Azpilicueta: César Azpilicueta Tanco (] ; born 28 August 1989) is a Spanish professional footballer who plays for Premier League club Chelsea and the Spain national team primarily as a full-back but also as a centre-back.
Document 2: Pepe (footballer, born 1983): Képler Laveran Lima Ferreira, (born 26 February 1983), commonly known as Pepe (] ), is a Portuguese professional footballer who plays for Turkish club Beşiktaş and the Portugal national team as a central defender. During his professional career he has played for Marítimo, Porto and Real Madrid, with individual and team success with the latter two clubs. He currently plays for Turkish side Beşiktaş. An aggressive, physically strong and tenacious defender, Pepe is known for his hard-tackling style of play. however, despite his defensive abilities, he has also drawn criticism in the press at times, due to his tendency to pick up cards, as he has occasionally shown violent or unsportsmanlike behaviour on the pitch.
Document 3: Sergi Roberto: Sergi Roberto Carnicer (] , born 7 February 1992) is a Spanish professional footballer who plays for FC Barcelona. Mainly a central midfielder, he can also operate as a defensive midfielder, full-back or winger.
Document 4: Sergio Pelegrín: Sergio Pelegrín López (born 18 April 1979) is a retired Spanish professional footballer who played as a central defender.
Document 5: Andrés Flores: Nicknamed "Ruso", Flores was signed by top Argentine side River Plate and played for River Plate's Reserves team in 2006–2008. He impressed in Argentina, but was unable to stay due to his age.
Document 6: Isco: Francisco Román Alarcón Suárez (born 21 April 1992), commonly known as Isco (] ), is a Spanish professional footballer who plays as an attacking midfielder for Real Madrid and the Spain national team.
Document 7: Sergio Busquets: Sergio Busquets Burgos (] , ] ; born 16 July 1988) is a Spanish professional footballer who plays as a defensive midfielder for FC Barcelona and the Spain national team.
Document 8: Gerard Piqué: Gerard Piqué Bernabéu (] ; born 2 February 1987) is a Spanish professional footballer who plays as a centre-back for FC Barcelona and the Spain national team.
Document 9: Sergio Ramos: Sergio Ramos García (] ; born 30 March 1986) is a Spanish professional footballer who plays for and captains both Real Madrid and the Spain national team. Primarily a central defender, he can also play as a right back.
Document 10: Fernando Llorente: Fernando Javier Llorente Torres (] ; born 26 February 1985), nicknamed "El Rey León" ("The Lion King" in Spanish), is a Spanish professional footballer who plays as a striker for English club Tottenham Hotspur and the Spain national team.
Document 11: Dani Carvajal: Daniel "Dani" Carvajal Ramos (] ; born 11 January 1992) is a Spanish professional footballer who plays as a right back for Spanish club Real Madrid and Spain national team.
Document 12: Kalle Mäkinen: Kalle Mäkinen (born 1 February 1989) is a Finnish footballer who last played for the Finnish Veikkausliiga club Maskun Palloseura. He was nicknamed "Sergio" because his style of play was similar to that of Spanish fullback Sergio Ramos
Document 13: Sergio Agüero: Sergio Leonel "Kun" Agüero (] ; born 2 June 1988) is an Argentine professional footballer who plays as a striker for Premier League club Manchester City and the Argentina national team.
Document 14: Iker Casillas: Iker Casillas Fernández (] ; born 20 May 1981) is a Spanish professional footballer who plays for Portuguese club Porto and the Spain national team as a goalkeeper. Having won the IFFHS World's Best Goalkeeper Award for a record five consecutive years, Casillas is considered as one of the greatest and most successful goalkeepers of all time, placing second behind Gianluigi Buffon in both the IFFHS Best Goalkeeper of the past decade and quarter-century awards in 2010. Nicknamed ""San Iker"" ("Saint Iker") for his ability to produce spectacular saves, he is an athletic goalkeeper, known for his quick reactions and outstanding shot-stopping ability.
Document 15: Sergio Romero: Sergio Germán Romero (born 22 February 1987) is an Argentine professional footballer who plays as a goalkeeper for English club Manchester United and the Argentina national team.
ground_truth: Kalle Mäkinen