Early career Mutumba began his career in
Vasalunds IF as a young child, and in 1999 he joined AIK, as a youth player. In the fall of
2002 he made his first appearance with the senior squad against
Kalmar FF, playing the last five minutes of the game. In
2004 AIK wanted Mutumba to play with
FC Café Opera, a club that would functioned as an AIK feeder club. Unfortunately, Mutumba broke his leg in an indoor tournament he played with some friends before the season had started and he was never able to play any matches for Café Opera. He stated that he lost his interest in football and "started hanging with the wrong crowd". This eventually landed him with a battery and assault charge. A judicial court gave him a second chance and he decided to continue with football.
Inter Turku In 2005, AIK sold him to
Finnish team
FC Inter Turku that played in the Premier Division,
Veikkausliiga.
Väsby United When the Finnish season ended in the fall of 2007 Mutumba tried out for Spanish
La Liga club
Deportivo de La Coruña, his old club
AIK and
Scottish Premier League club
Hibernian. Mutumba himself reported that he turned down a deal from Deportivo La Coruña, and British media claimed he signed a short-term contract with Hibernian. In a 2009 interview with Swedish newspaper
Aftonbladet he stated that the deal with Deportivo La Coruña fell through due to problems on behalf of his agent, and he explained that they were talking about the
development team, Fabril, who play in the Spanish Segunda B division. In the end he signed with
Superettan club
FC Väsby United, where he had previously been under contract in 2004 when the club was still known as "FC Café Opera“.
Return to AIK In November 2008 he signed with
AIK again. Following his return to the club, he stated that he was where he wanted to be and that it was highly unlikely that he would move abroad again and that the money offered to him was not going to be decisive. In the last game of the 2009 season AIK beat
IFK Göteborg 2–1 in a dramatic title-deciding match, claiming the Allsvenskan championship for the first time in eleven years. In the match 55th minute, Mutumba provided the assist to his teammate
Antônio Flávio, who took the "skillful" feed and rifled the equalizer past IFK Gothenburg's goalkeeper. Two days before the final game, Mutumba tattooed in "AIK GULD (Gold) 2LAX9 (2009, LAX is slang for thousand) on his chest. AIK came off to a bad start in the 2010 season, performing badly despite being crowned champions only a few months earlier. The club was nearing a relegation battle due to these bad showings. Manager
Mikael Stahre left for
Panionios GSS and the team came under heavy criticism for its poor performances.
Videoton On 28 June 2010, media reported that the Hungarian club of
Videoton FC had bought both
Bojan Djordjic and Martin Mutumba. The director of the Hungarian club compared Djordjic to
Roberto Baggio and Mutumba to
Ronaldinho. The transfer led to many speculations in media, especially since
AIK had appointed the Scottish manager
Alex Miller only a couple of days before the transfer were made. The players claimed that it was Mr. Miller’s decision to let the players go, but the organization of AIK claimed that they got such a good offer that they couldn't refuse to sell.
Second return to AIK In 2011, Mutumba was signed by AIK for the third time, agreeing on a three-year deal with the club.
Çaykur Rizespor On 5 January 2014,
Çaykur Rizespor announced that Mutumba signed with them for 2.5 years.
Rah Ahan On 3 March 2015, he joined
Persian Gulf Pro League club
Rah Ahan. == Personal life ==