|Full name||Ibrahim Marcel Koroma|
|Date of birth||17 May 1989|
|Place of birth||Freetown, Sierra Leone|
|Height||1.88 m (6 ft 2 in)|
|2008||→ D.C. United (loan)||0||(0)|
|2009–2010||→ Motala AIF (loan)||25||(3)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 6 April 2017 (UTC).
‡ National team caps and goals correct as of 10 June 2012
Previously Koroma played for Swedish Superettan club Varbergs BoIS and the Sierra Leone national football team. He plays both as a defensive midfielder and central defender. Koroma is commonly known by his nickname "Marcel", which is taken from former French footballer Marcel Desailly.
Koroma played for Sierra Leone National Premier League side FC Kallon until 2008. He scored 13 goals in 83 caps during his four-year stay at the club. Koroma also helped FC Kallon win the Sierra Leonean FA Cup in 2007 as well as reach the first round of the CAF Champions League in that same year.
American Major League Soccer club D.C. United signed Koroma in September 2008. However, he was waived at the end of the season as D.C. United failed to buy out his transfer rights from FC Kallon. This was caused by the roster changes in MLS from 28 to 24 players which meant that Koroma was surplus to requirement since they wanted to use their funds to give development contracts to SuperDraft players for the 2009 Major League Soccer season.
At the start of the 2009 season Koroma was brought in on loan by Swedish third tier club Motala AIF. Even though the club was relegated at the end of the season Koroma returned again for the first half of the following year where he vas voted best defender of all six fourth tier leagues.
After his success at Motala he was signed by Allsvenskan club Trelleborgs FF in July 2010. During his time at the club Trelleborg suffered two consecutive relegations and found themselves in the third tier at the start of 2013. This caused Koroma to declare that he wanted to leave the club.
Koroma represented Sierra Leone as part of the U-17, U-20 and U-23 National Teams, before making his senior team debut in 2007. Since then, he has represented his country on 14 occasions and was selected to play for the National Team in its CAF Cup of Nations and 2010 FIFA World Cup qualification campaign, playing as a starter in Sierra Leone's matches against Nigeria, South Africa and Equatorial Guinea.
In July 2014, Leonean ex-captain Ibrahim Kargbo was among 15 players and officials suspended indefinitely, along with Koroma, Samuel Barlay and Christian Caulker over allegations of match-fixing relating to a Africa Cup of Nations qualifier in 2008 against South Africa which ended 0-0.
- Sierra Leonean FA Cup
- Sierra Leone Champions 2006
- "Officiellt: Husqvarna FF värvar Vazgec och Koroma". fotbolltransfers.com.
- "Koroma har skrivit på för Varbergs Bois". Hallands Nyheter (in Swedish). 28 February 2013. Retrieved 16 March 2013.
- "Ibrahim Koroma spelar där tränaren placerar honom: "I just want to play football"". trelleborgsff.se (in Swedish). Trelleborgs FF. Retrieved 16 March 2013.
- "Motala lånar afrikanskt löfte". svenskbaskettelevision.se (in Swedish). Svensk Baskettelevision. Retrieved 16 March 2013.
- "D.C. United signs defender Ibrahim Koroma". oursportscentral.com (in Swedish). OurSports Central. Retrieved 16 March 2013.
- "Årets försvarare: Ibrahim Koroma". svenskafans.com (in Swedish). Svenska Fans. Retrieved 16 March 2013.
- "Ibrahim Koroma klar för Trelleborg". fotbolltransfers.com (in Swedish). Fotbolltransfers. Retrieved 16 March 2013.
- "Noring, Jovanovic och Koroma vill lämna Trelleborg Noring, Jovanovic och Koroma vill lämna Trelleborg". fotbolltransfers.com (in Swedish). Fotbolltransfers. Retrieved 16 March 2013.
- "Sierra Leone match-fixing: Captain Kargbo one of 15 suspended". BBC Sport. 16 July 2014. Retrieved 8 December 2014.