Football's world governing body Fifa is reportedly planning to investigate Roberto Firmino's transfer to Liverpool, days after it announced a similar inquiry into Manchester United's signing of Paul Pogba.
Firmino moved to Liverpool from German club Hoffenheim for a reported fee of £29 million. However the Football Leaks website claims Hoffenheim received just £5.8 million of the fee.
The rest of the money, according to Football Leaks, went to company called Transfair, owned by German entrepreneur Dietmar Hopp.
There is at present no suggestion that any rules were broken in the transfer.
Firmino has become a key player for Liverpool and a fan's favourite at Anfield, one of the most creative players in the Premier League. He has also emerged as a regular starter for the Brazil national team.
Reports of an inquiry come just days after Fifa launched an investigation into the £89 million transfer of Pogba to United last summer.
It has been claimed in some quarters that Pogba's agent, Mino Raiola, received a greater share of the proceeds than was permitted by Fifa statutes. However, once again there is no specific suggestion of wrongdoing, and United have been defended by the head of the English Football Association, Greg Clarke.