Question: Mariana Kovacevic reportedly treated an argentine professional footballer who plays what position for West Ham United?

Context paragraphs:
Danny Williamson (footballer): Daniel 'Danny' Williamson (born 5 December 1973 in West Ham, London) is an English retired professional footballer who was a product of the West Ham United academy and played for West Ham United and Everton in the 1990s.  He played in midfield.

Jordan Santiago: Jordan Christopher Santiago (born 3 April 1991) is a Spanish-Canadian former Canada U-20 International professional footballer who last played for Dutch club SC Veendam, as a goalkeeper.  Jordan retired at the age of 22 and moved into coaching after being approached by West Ham United at the start of the 2013/2014 Premier League Season.  Jordan was the Lead Goalkeeper Coach for the Youth Development Phase at West Ham United from August 2013 - July 2014.  He was responsible for developing two England Youth International Goalkeepers during that time.

Mark Noble: Mark James Noble (born 8 May 1987) is an English footballer who plays as a central midfielder and is captain of West Ham United.  He has played almost all his youth and first team football for West Ham apart from two short loan spells, at Hull City and Ipswich Town.  He has played for England at U16, U17, U18, U19 and U21 levels.  He captained the U21 side, scoring three goals in 20 appearances.  Noble is the longest serving player in West Ham's current squad, having been in the first team since 2004.  He is West Ham's first-choice taker for penalty kicks and has won the club's Hammer of the Year trophy twice.

Freddie Sears: Frederick David "Freddie" Sears (born 27 November 1989) is an English professional footballer who plays as a forward for Ipswich Town.  He started his career with his local club West Ham United at the age of eleven, progressing through the West Ham United Academy.  He made a scoring first-team debut in March 2008 when he netted the winner against Blackburn Rovers after coming on as a second-half substitute.  Sears made over 50 first-team appearances for West Ham, but never held down a regular starting position.

World Cup Sculpture: The World Cup Sculpture, or simply The Champions, is a bronze statue of the 1966 World Cup Final located near West Ham United Football Club's Boleyn Ground (Upton Park) stadium in the London Borough of Newham, England.  It depicts a famous victory scene photographed after the final, held at the old Wembley Stadium in London, featuring Bobby Moore, Geoff Hurst, Martin Peters and Ray Wilson.  It was the first and only time England had won the World Cup, and England captain Moore is pictured held shoulder high, holding the Jules Rimet Trophy aloft.  Jointly commissioned by Newham Council and West Ham United, it stands at the junction of Barking Road and Green Street, near the Boleyn Ground.  It commemorates West Ham's contribution to the victory, with Moore, Hurst and Peters having all been West Ham players at the time of the 1966 World Cup.  Sculpted by the Royal Sculptor Philip Jackson, it was unveiled in 2003 by Prince Andrew, president of the Football Association.  Jackson went on to also sculpt the statue of Bobby Moore unveiled at the new Wembley when it opened in 2007.

Mariana Kovacevic: Mariana Kovacevic is a Serbian traditional healer who has specialized in the use of horse placenta treatment to heal athletes.  During the duration of the 2012 African Cup of Nations in Gabon and Equatorial Guinea she used the horse placenta treatment to heal Ghana's Asamoah Gyan, who had been injured and was supposed to be off football for four weeks.  She is reported to have nursed him back to health in four hours.  She was also reportedly enlisted by the Serbia during the world of 2010 in south Africa.  Other footballers who are reported to have been treated by Mariana include Pablo Zabaleta, Vincent Kompany, Nigel de Jong and Robin Van Persie of Manchester United.  There has been some doubt as to whether Mariana's therapies work.  But more footballers are turning to her for help.

Mick McGiven: Mick McGiven (born 7 February 1951 in Newcastle upon Tyne) is a former professional footballer who played as a defender in the Football League for Sunderland and West Ham United.  After retiring as a player he joined the coaching staff at West Ham United, then worked with Chelsea's youth team and coached Ipswich Town alongside John Lyall before taking over as first team manager.  He returned to Chelsea where he performed a variety of roles with reserves and first-team, and as of 2009 is a match observer/scout.

West Ham United F.C. Under-23s: West Ham United F.C. Under-23s, formerly West Ham United F.C. Under-21s is the most senior of West Ham United's youth teams.  The Under-23 team is effectively West Ham United's second-string side, but is limited to three outfield players and one goalkeeper over the age of 23 per game following the introduction of new regulations from the 2012–13 season.  They play in Premier League 2 and also compete in the Checkatrade Trophy.

Paul Brush: Paul Brush (born 22 February 1958 in Plaistow) is an English former professional footballer and coach who played in the Football League for West Ham United, Crystal Palace and Southend United.  He is best known for his time with West Ham United, for whom he played from 1976 until 1985.

Pablo Zabaleta: Pablo Javier Zabaleta Girod (] ; born 16 January 1985) is an Argentine professional footballer who plays as a right back for West Ham United and the Argentina national team.  Zabaleta can operate on both sides of the pitch as a full back and is known for his tenacious style of play, and has captained his club on numerous occasions.

Supporting paragraphs: Mariana Kovacevic Pablo Zabaleta
Answer: right back