Sporting Lisbon president Bruno de Carvalho believes his club were partly tricked by third party investors into selling Marcos Rojo to Manchester United.
De Carvalho revealed his club were 'pressured' into selling the Argentinian international to Manchester United over the summer, as third-party investors wanted a return.
Man United transfer update
"We did not want Rojo to leave," de Carvalho told the BBC. "The pressure was so big, they [third-party owners] started to speak to the club and come here to the meetings."
And the Sporting president believes his club were confused during the negotiations between Sporting and Manchester United, as it wasn't clear who were third-party investors and who were United club officials.
"The directors thought they were people from the clubs because they were speaking in England although they were Portuguese," de Carvalho said.
"They believed it was a person from the club but it was a person from the funds."
Ander Herrera pursuit
The confusion is reminiscent of the embarrassing pursuit of Ander Herrera by United last summer. Then United manager David Moyes wanted to sign the Spaniard, but talks were called off after three men who claimed to represent United arrived in Bilbao to seal the transfer.
They were not affiliated to the Old Trafford club and the negotiations fell-through - although Herrera was successfully signed 12 months later.
Rojo at United
The BBC has since spoken to United who claim that the third party ownership debate is something between Sporting and the investors themselves to sort out, and that United are not involved.
Marcos Rojo has made three Premier League appearances since his move from Portugal over the summer, and could feature against Everton this weekend.