European football's governing body, UEFA, has reopened an investigation into Paris Saint-Germain's finances and transfer spending after formerly closing proceedings in June.
UEFA announced a month later that it would review its decision, and BBC Sport reported on Monday that it has now chosen to "refer the case back for further investigation."
PSG more than doubled the previous world transfer record to sign Neymar for £200 million in the summer of 2017. That summer they also loaned Kylian Mbappe from AS Monaco with an agreement to make the move permanent one year later for £166 million.