A letter urging UEFA to block a Qatari takeover of Manchester United has been sent to the governing body's president Alexander Cerefin, citing concerns about "the integrity of the game".
United's owners the Glazer family put the club up for sale in November, and a number of bids are expected by the deadline of February 17. among the potential bidders is a Qatari group, with the emir of the middle-eastern country said to be keen to own both United and Paris Saint-Germain through separate operating companies.
Qatar Sports Investment has owned PSG since 2012, but UEFA rules prevent two clubs with shared ownership taking part in the same competition, such as the Champions League. It has been claimed that the European football governing body would be prepared to green-light a sale to Qatari bidders, but FairSquare - which describes itself as a non-profit human rights research and advocacy group - has put pressure on Ceferin as the bid deadline nears.