Question: What is the Portuguese football agent whose clients include the manager for the Premier League club Manchester United, often referred to as?

full_context: Document 1: Paul Scholes: Paul Scholes ( ; born 16 November 1974) is an English retired footballer who played his entire professional career for Manchester United. He is currently co-owner of Salford City and a television pundit for BT Sport. He is the most decorated English footballer of all time, and one of the most successful footballers in history, having won a total of 25 trophies, featuring 11 Premier League titles and two Champions League titles.
Document 2: Carlos Queiroz: Carlos Manuel Brito Leal Queiroz, (] ; born 1 March 1953), is a Portuguese football coach who is the current manager of the Iran national team. He has also been the manager of the Portuguese national team and Spanish club Real Madrid, and was Alex Ferguson's assistant manager at English club Manchester United. He has qualified three national teams to the World Cup, those being South Africa in 2002, Portugal in 2010, and Iran in 2014 and 2018.
Document 3: Roger Montgomery (sports agent): Roger Montgomery (born 1970) is an American sports agent and former professional basketball player. He is the current CEO of Montgomery Sports Group. As a sports agent, Montgomery has represented basketball players in the National Basketball Association (NBA) and international leagues.
Document 4: James Rodríguez: James David Rodríguez Rubio (] ; born 12 July 1991), commonly known simply as James, is a Colombian professional footballer who plays as an attacking midfielder or winger for German club Bayern Munich on loan from Real Madrid, and captains the Colombia national team. He is commonly ranked as one of the best players of his generation. He is praised for his technique, vision and playmaking skills, and often referred as the successor to his compatriot Carlos Valderrama.
Document 5: Jorge Mendes: Jorge Paulo Agostinho Mendes (born 7 January 1966), better known simply as Jorge Mendes, is a Portuguese football agent. He is registered with the Portuguese Football Federation and heads the GestiFute company, founded in 1996. Mendes is among the most influential football agents in the world, with clients including Cristiano Ronaldo, David de Gea, Diego Costa, James Rodríguez, and José Mourinho. Mendes is often referred to as a "super-agent".
Document 6: Dan Lozano: Dan Lozano (born March 3, 1967) is a professional sports agent, specializing in baseball. He is the founder of MVP Sports Group, a sports agency based in Los Angeles, CA. His current clients include many notable MLB players such as Albert Pujols, Joey Votto, Alex Rodriguez, Jimmy Rollins, Carlos Beltrán, Nick Swisher, Michael Young, Brian Wilson and Mike Piazza. He has worked professionally as an agent for over 23 years, and has negotiated numerous deals including some of the largest deals in baseball history such as Mike Piazza’s 7-year $91 million deal with the New York Mets, Albert Pujols’ $240 million deal with the Los Angeles Angels of Anaheim and Joey Votto’s $225 million extension with the Cincinnati Reds.
Document 7: Rich Paul: Rich Paul is an American sports agent based in Cleveland, Ohio. He founded Klutch Sports Group and represents a number of prominent NBA players, including Eric Bledsoe, John Wall, Ben Simmons, and long-time friend LeBron James.
Document 8: Pep Guardiola: Josep "Pep" Guardiola Sala (] ; born 18 January 1971) is a Spanish professional football coach and former player who is the current manager of Manchester City.
Document 9: Alex Ferguson: Sir Alexander Chapman Ferguson, CBE (born 31 December 1941) is a Scottish former football manager and player who managed Manchester United from 1986 to 2013. He is regarded by many players, managers and analysts to be one of the greatest and most successful managers of all time.
Document 10: Oscar Damiani: Giuseppe "Oscar" Damiani (born 15 June 1950) is an Italian former professional football winger. He is currently the agent of Borussia Dortmund striker Pierre-Emerick Aubameyang.
Document 11: Juan Figer: Juan Figer Svirski is an Uruguayan-Brazilian football agent. His organisation, MJF Publicidade e Promoções S/C Ltda, represent, amongst others, Brazilian footballers Robinho, Júlio Baptista, Alex, Zé Roberto, and Europeans Luís Figo and Marcos Senna. He is co-owner of the firm with Wagner Ribeiro.
Document 12: Marcus Rashford: Marcus Rashford (born 31 October 1997) is an English professional footballer who plays as a forward for Premier League club Manchester United and the England national team.
Document 13: José Mourinho: José Mário dos Santos Mourinho Félix, (born 26 January 1963), known as José Mourinho (] ), is a Portuguese football manager and former football player. He is the manager of Premier League club Manchester United.
Document 14: 2008–09 Inter Milan season: After Roberto Mancini's departure, José Mourinho became the new coach of Inter. The Portuguese manager won a trophy at his debut, Supercoppa Italiana, defeating Roma on penalties. He planned a 4–3–3 formation, with the new arrivals Amantino Mancini and Quaresma as wingers beside Zlatan Ibrahimović.
Document 15: History of Manchester United F.C. (1986–2013): The period from 1986, when Alex Ferguson was appointed as Manchester United manager, to 2013, when he announced his retirement from football, was one of the most successful in the club's history. Ferguson joined the club from Aberdeen on the same day that Ron Atkinson was dismissed, and guided the club to a 12th-place finish in the league. Despite a second-place finish in 1987–88, the club was back in 11th place the following season. Reportedly on the verge of being dismissed, victory over Crystal Palace in the 1990 FA Cup Final replay (after a 3–3 draw) saved Ferguson's career. The following season, Manchester United claimed their first Cup Winners' Cup title and competed in the 1991 European Super Cup, beating European Cup holders Red Star Belgrade 1–0 in the final at Old Trafford. A second consecutive League Cup final appearance followed in 1992, in which the team beat Nottingham Forest 1–0 at Wembley Stadium. In 1993, the club won its first league title since 1967, and a year later, for the first time since 1957, it won a second consecutive title – alongside the FA Cup – to complete the first "Double" in the club's history.
ground_truth: super-agent