Nantes have begun legal action against Cardiff City, demanding the first payments for the purchase of Emiliano Sala.
It was gathered that the Ligue 1 club are demanding an initial payment of £5m, which will be transferred immediately.
Newsbeats gathered that, Cardiff City is not yet paid any of the £15m fee for the Argentine striker.
However, the club feels it basic for the recovery operation ongoing to be concluded and for both the Air Accidents Investigation Branch (AAIB) and the police to conclude their investigations before any payments are made.
It is understood that Cardiff received the first letter from Nantes’ lawyers more than a week ago. The Premier League club’s lawyers have responded, asking for more time.
At this stage, it is not known whether any legal case would be heard in France or the United Kingdom.