Question: What Belgian professional footballer was treated by Serbian traditional healer, Mariana Kovacevic?

full_context: Document 1: Jan Vertonghen: Jan Bert Lieve Vertonghen (] ; born 24 April 1987) is a Belgian professional footballer who plays as a defender for English club Tottenham Hotspur and the Belgium national team. He is the third-captain for Spurs.
Document 2: Miljan Radović: Miljan Radović (Cyrillic: Миљан Радовић) was a Montenegrin footballer who last played for Pelita Bandung Raya in the Indonesia Super League. He is famous because of his accurate set pieces that often led to beautiful goals. He is also nicknamed 'The Professor' because of his well- timed and smart passes and also his entertaining skills.
Document 3: Footbonaut: The Footbonaut is a football training machine which fires balls at different speeds and trajectories at players, who must control and pass the ball into a highlighted square. Footbonaut was invented by Christian Güttler in Berlin, Germany. The machine is also described as a robotic cage. Mario Götze's winning goal of the 2014 FIFA World Cup Final has been credited to his years of practice using Footbonaut. The Footbonaut is also credited for the success of Borussia Dortmund, who first used the machine. There are several undisclosed clubs in Germany currently using Footbonaut in their trainings.
Document 4: Addis Ababa Fistula Hospital: Addis Ababa Fistula Hospital (also known as "Hamlin Fistula Hospital") and its regional Hamlin Fistula Centres provide comprehensive care for women who suffer from incontinence, physical impairment, shame and marginalisation as a result of an obstetric fistula. The hospital was created by the Australian obstetrician and gynaecologists Catherine Hamlin and her husband Reginald Hamlin to care for women with childbirth injuries and has been in operation since 1974. It is in Addis Ababa, the capital of Ethiopia. It is the only hospital of its kind in the world dedicated exclusively to women with obstetric fistula (a condition common in the developing world where the maternal health provisions are poor), and it treats all patients free of charge. Patients undergo surgical repair by Ethiopian and expatriate surgeons trained at the hospital's main facility in Addis Ababa. Around 93% of these patients are repaired successfully.
Document 5: Timmy Simons: Timmy Simons (born 11 December 1976) is a Belgian professional footballer who plays for Club Brugge in the Belgian Pro League. He plays as a defensive midfielder, he is known for his tireless work ethic and penalty-taking ability, having scored 48 competitive goals through penalty, missing only 5. In 2012, at age 36, Simons was both the outfield player with the most minutes and the most kilometres in the Bundesliga. Simons' former clubs include Lommel, Club Brugge, PSV Eindhoven and 1. FC Nürnberg. He has captained both Club Brugge and PSV Eindhoven, and won the Belgian Golden Shoe in 2002 while playing for Club Brugge.
Document 6: Kevin De Bruyne: Kevin De Bruyne (] ; born 28 June 1991) is a Belgian professional footballer who plays for English club Manchester City and the Belgium national team. De Bruyne plays mainly as an attacking midfielder but can also play as a winger or second striker. He is often described as one of the best modern day advanced playmakers due to his technique, wide range of passing, and long-range shooting skills, and is often regarded as one of the best midfielders in Europe.
Document 7: Sister Lauras Food Supplement: In the early 1900s Sister Laura Marian Smith, a nurse at the Glasgow Royal Maternity Hospital, noted the high levels of malnutrition in children at the time, and is credited with promoting the use of a Casein inhibitor to make cows milk more beneficial to those who had extreme difficulty in digesting it. By creating a powder formulae to mix with milk, it enabled it to become an effective aid to patient recovery. Although named after Sister Laura - this was a marketing strategy as the powder is said to have been developed by Dr Leonard Findlay, at the time a noted expert of infant dietary disorders at Rottenrow. Although Sister Laura was one of the original shareholders when the company when it was established in 1911, by 1920 she had sold her interests in the company, though it continued to expand, opening a purpose-built factory at Emerson Road West, Bishopbriggs.
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: Vincent Kompany: Vincent Jean Mpoy Kompany (] ;] ; born 10 April 1986) is a Belgian professional footballer who plays as a central defender and captains both English club Manchester City and the Belgium national team. In the 2011–12 season he was awarded the captaincy of Manchester City, leading his club to win the Premier League that season, their first league title in 44 years. He is also chairman of Belgium D3B Division club BX Brussels.
Document 10: List of Belgium national football team captains: As of March 2016, the Belgian national football team has been led by at least 89 different captains; 86 different players "started" an international game as captain, but due to substitutions the total number is higher. At least 15 pure forwards and eight goalkeepers have fulfilled this role but most often Red Devils in defensive positions and midfielders were assigned as captain, as is usually the case in association football. Until 2011 under Dick Advocaat and Georges Leekens the former Belgium U-23 captain Thomas Vermaelen was chosen as national squad's leader, but during an injury period he left the captaincy to Vincent Kompany, who became the new permanent captain. After several periods of injuries and missing out UEFA Euro 2016, Kompany gradually lost his position as captain to Eden Hazard by 2017.
Document 11: Marouane Fellaini: Marouane Fellaini-Bakkioui (] ; born 22 November 1987) is a Belgian professional football player who plays as a midfielder for Premier League club Manchester United and the Belgium national team.
Document 12: Gordana Vunjak-Novakovic: Gordana Vunjak-Novakovic is a Serbian American biomedical engineer. She is University Professor and The Mikati Foundation Professor of Biomedical Engineering and Medical Sciences at Columbia University, where she directs the Laboratory for Stem Cells and Tissue Engineering. She is also a faculty in the Irving Comprehensive Cancer Center and in the Center for Human Development at Columbia University, an honorary professor at the Faculty of Technology and Metallurgy at the University of Belgrade, honorary professor at the University of Novi Sad, and an adjunct professor at the Department of Biomedical Engineering at Tufts University.
Document 13: 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.
Document 14: Romelu Lukaku: Romelu Menama Lukaku Bolingoli (born 13 May 1993) is a Belgian professional footballer who plays as a striker for Premier League club Manchester United and the Belgium national team. He is one of only five players to score 50 Premier League goals before his 23rd birthday, and the fourth player (and first foreigner) to score 80 before his 24th birthday.
Document 15: Martin Clawson: Martin Clawson is the Head Strength and Conditioning Coach at the club. He is himself a former player with Bradford Northern and comes from a famous Rugby League family. He has a background in sports fitness and was formerly a masseur at the club before assuming his present role. He is a former body building competitor and his personality makes him the ideal person for his job at the Bulls. Martin was employed as a business consultant for corporate communications giants Wish Communications with Garry Schofield OBE and John Stankevitch but has since taken up the role of Strength and Conditioning Coach at Wakefield Trinity Wildcats in the Super League.
ground_truth: Vincent Kompany