Wednesday 14 October 2015 20:50, UK
FIFA have confirmed to Sky Sports News HQ that they are investigating Eliaquim Mangala's transfer from Porto to Manchester City for a possible breach of third-party ownership rules.
France international Mangala has played 31 times in the Premier League for City since joining from the Portuguese side in August 2014 for £32m.
Doyen Sports - a player representation company with bases in Malta and London - paid just under £2m in 2011 for a share of Mangala's future value with the expectation his eventual resale would be great than the investment.
City, who are not under investigation themselves, bought the centre-back three years later and Doyen received around £10.6m in their share of the fee.
And if FIFA's disciplinary committee decides that Porto broke the rules, the club could be fined or placed under a transfer embargo.
Mangala began his career as a trainee at Belgian club Namur before being picked up by Standard Liege at 17.
After more than 100 first-team appearances he joined Porto in a combined deal with Steven Defour for £11.4m.
