Question: Mariana Kovacevic used a horse placenta to heal which Ghanaian professional footballer during the 2012 African Cup?
Context: Felix Owolabi (born 24 January 1956) is a Nigerian footballer who played for the Nigerian national team.  Playing much of his career as a left winger, he played for Nigeria at the 1978 African Cup of Nations and at the 1980 Summer Olympics.  He played with the Nigerian teams that came third at the 1978 African Cup of Nations and won the African Cup of Nations in 1980. USM Alger whose team has regularly taken part in Confederation of African Football (CAF) competitions.  Qualification for Algerian clubs is determined by a team's performance in its domestic league and cup competitions, USM Alger have regularly qualified for the primary African competition, the African Cup, by winning the Ligue Professionnelle 1.  USM Alger have also achieved African qualification via the Algerian Cup and have played in both the former African Cup Winners' Cup and the CAF Cup.  the first match was against CARA Brazzaville and ended in victory for USM Alger 2–0 As for the biggest win result was in 2004 against ASFA Yennenga 8–1, and biggest loss firstly defeat in 1998 against Primeiro de Agosto club, and the secondly in 2013 away at against US Bitam 3–0, first participation in International competition were in the African Cup Winners' Cup in 1982 and the maximum in the quarter-finals against Ghanaian club Hearts of Oak, in the 1989 version of the same competition and the club withdrew from the same role after the loss in the first leg against Malagasy club BFV at Omar Hamadi Stadium, after that to miss the club's continental competitions for eight years until 1997 in the CAF Champions League for the first time, The beginning was against CD Travadores from the Cape Verde and ended with score 9–2 in total after the second round faced Udoji United Nigerian club and ended with a total of 3–2 to qualify the team for the group stage, where he signed with Raja Casablanca from Morocco, Primeiro de Agosto from Angola and recently Orlando Pirates of South Africa and the team finished second with 11 points, three victories, two draws and a single defeat was against Primeiro de Agosto score 1–2 away from home, and almost USM Alger advance to the final match and goal difference in favor of Raja Casablanca.  the following year in the Cup Winners' Cup USMA eliminated in the quarter-final against Angola's Primeiro de Agosto 1–5 on aggregate and before the piece in the second round faced Ghapoha Readers Ghanaian club finished 2–0 on aggregate.  then he participated in the CAF Cup for the first and last time the first match was against Horoya AC and ended in favor of the Union by away goals rule.  later in the second round and faced Al-Ahli Wad Madani from Sudan, where they won back and forth a total of 7–0 to stop the march of the team in the quarter-final against Wydad Casablanca by away goals rule one more time. The 2012 African Sevens was an international rugby sevens competition organized by the Confederation of African Rugby.  It was the fourth edition of the African Sevens, which had been held every four years since the year 2000, and served as the African continental qualifier for the 2013 Rugby World Cup Sevens.  The tournament, hosted together with 2012 African Women's Sevens, was held in Rabat on September 29–30, 2012. Akram El Hadi Salim (born 27 February 1987) is a Sudanese international footballer who plays for Al-Merreikh, as a goalkeeper.  He was the starting goalkeeper for the Sudan team that reached the 1/4 finals of the 2012 African Cup of Nations and took part in 3 matches.  There have been a link that Akram El Hadi may play in the French League of Ligue 1 Tobie Bayard Mimboe (sometimes referred to as Toby Mimboe), is a retired Cameroonian footballer.  He played for several teams, mostly in South America.  He started in Cameroonian team Olympic Mvolyé.  In his long career, he played in Paraguay for Deportivo Recoleta, Colegiales, Sportivo Luqueño, 12 de Octubre and Cerro Porteño, in Turkey for Gençlerbirliği, in Argentina for San Lorenzo, in Bolivia for The Strongest and in China for Shenyang Haishi.  He was capped for the Cameroon national football team, and participated in two African Cup of Nations, in the 1996 African Cup of Nations, and 1998 African Cup of Nations Yazid Mansouri (Arabic: يزيد منصوري‎ ‎ , Yazīd Manṣūrī) (born 25 February 1978 in Revin, Ardennes, France) is a retired Algerian footballer who played as a defensive midfielder.  Mansouri announced his retirement from international football on 26 June 2010, after mentioning to the media that he will not be participating in the friendly in August against Gabon and the 2012 African Cup of Nations qualifiers. Asamoah Gyan ( , , born 22 November 1985 in Accra) is a Ghanaian professional footballer who plays as a striker for Kayserispor and captains the Ghanaian national team. Mohammed Ahmed Bashir, also known as Bisha, (born 23 May 1987) is a Sudanese footballer who plays for the Sudanese club Al-hilal Omdurman.  He plays as a striker and also a winger.  He is a member of the Sudan national football team.  He was brought from Al-Mourada SC to Al-Hilal in December 2010.  After having a brilliant season with Al-Hilal in 2011, he was linked with Leyton Orient and Arsenal.He scored Sudan first goal in 36 years in the 2012 African Cup Of Nations against Angola in the group B which ended in a 2 : 2 .  He was transferred to Saudi club Al-Wehda in June 2012.  He scored his first goal for Al-Wehda against Al-Ahli in a friendly match which Al-Wehda won 0 : 4.  Bisha later scored his first league, competitive goal for his new side with a beauty against the Saudi League champions Al-Shabab but the team lost 2: 5.  He has been a fan favourite in Makkah and in Sudan as he scored his national team since playing his trade in Saudi Arabia against Ethiopia which Sudan won the match 5:3 in a qualifier match for the 2013 AFCON to be helding in South Africa. 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. James Soto Roberts ( born 10 January 1992), commonly known as Soto, is a Liberian international footballer who plays as a striker for The Lions FC in the Seychelles League.  In July 2014, he moved from Liberian club LPRC Oilers to The Lions Fc in the Seychelles League.  Soto scored 6 goals in 12 appearances for The Lions FC during the 2014-2015 Season, winning the MVP during the 2008/2009 season in the Liberian Premier League with the Liberia Black Star FC including 2 Championship with Liberia Black Star and LPRC Oilers.  Soto represented Liberia Under 23 Team in the 2011 WAFU Nations Cup and was also call up to the Liberia national football team in the 2011/2012 African Cup of Nations.  qualifier.
Answer: Asamoah Gyan