Mahatma Otoo

St. Mirren

Otoo began his career in the youth side for Sporting St. Mirren at the age of 16. He signed his first professional football contract with St. Mirren in 2007 when he was 16 and made an instant impact in the team. They were in the Ghana Division One League when he joined them in the 2007–08 season. His key striking abilities and performances qualified St. Mirren to the Premiership for the first time in the club's history. His brace against Fair Point on the final day of the league secured the Division One Zone III title and sealed their qualification. He was the club's top scorer and second top scorer in the National Division One league. When the team qualified to the GPL for the first time he was registered as one of their senior squad members when he was 16 years old on 30 October 2008. He earned the discovery player of the season award in the 2008–09 season after he won five man of the match awards and got 5 goals from 15 games for his club.

Hearts of Oak

Otoo signed for the 2009–2010 season with Accra Hearts of Oak SC on a 3-year deal. He finished his debut season with the club with 10 league goals in 19 matches and a consecutive individual title winning the Ghana Premier League's best player of the season. In September 2010, he moved to Tunisian club Esperance Sportive de Tunis on a 4-month loan deal worth $150,000. He was initially set to join the club on a permanent deal for a deal worth $500,000 however it was renegotiated into a loan deal.…

Youth

Otoo played formerly in the Ghana national under-17 football team, he was later promoted to the Ghana national under-20 football team in 2011. In September 2011, Otoo played for the Black Meteors of Ghana in the 2011 All-Africa Games in Maputo, Mozambique. He was a top goalscorer of the tournament with 4 goals in 4 games helping Ghana to gold by scoring South Africa in the final. In March 2013, Otoo was called up to the Ghana national football team by coach Kwesi Appiah. Appiah described him as a “special player”.

Senior

After his successful first season was called up for the Ghana national football team for the friendly game on 1 October 2009 against Argentina national football team and played in the game to mark his international senior debut. In January 2015, he was named on the Ghana squad for the 2015 Africa Cup of Nations. He made one appearance after coming on in the 78th minute for Jordan Ayew in their second Group C match against Algeria. The match ended in a 1–0 victory for Ghana.

Otoo was born on 6 February 1992 in Mamprobi, a suburb of Ghana's capital Accra. He started playing juvenile football at the age of 10 for Ken Harrison Babes. He attended Ebenezer Secondary School located in Mamprobi for his secondary school education whilst playing for the school's football team.

On 4 March 2020, he lost his mother Love Habibatu Ankrah after battling with a short illness. Two days after her death, Otoo scored a goal in a match against Adanaspor and was seen crying and raising his hands to the skies and later going down in celebration whilst his teammates surrounded him to console him. He later took to both Twitter and Facebook to dedicate his goal to the memory of his late mother. He posted “I dedicate today’s goal to my mum, May Her Soul Rest In Peace.”