believes PSG's close links with Qatar, whose investment vehicle Qatar Sports Investments (QSI) bought the club in 2011, make unfair competition, and mean sponsorship contracts -- for the most part signed with Qatari entities -- have been overvalued.

He compared PSG to Premier League counterparts Manchester City, owned by the United Arab Emirates' ruling family, claiming both clubs have employed the same approach.

"In the last five years, we've seen PSG and Manchester City have been the clubs that have invested most in players," he told L'Equipe.

"As their real revenues don't allow them to make such investments, they have invented fictitious sponsors, linked to states, with amounts that don't correspond to the market.

"We compared the revenues of PSG and City with those of Real Madrid, Barca, Manchester United and Bayern.is convicted of doping, he's immediately kicked out of the race.

"I think that, actually, the checks should be made before the competition starts, not afterwards. Otherwise, the damage is done."

Tebas denied his stance was motivated by a desire to "avenge" Barcelona's loss of one of their superstars.

PSG have already fallen foul of FFP regulations, with their transfer dealings restricted, their Champions League squad reduced and a heavy fine imposed by UEFA in 2014.

Their sponsorship contract with the Qatar Tourism Authority, initially valued by the club at €200m, was judged to be worth half that amount by UEFA's accountants.

In a statement reported by L'Equipe, PSG said: "We're not going to respond to every attack by Mr. Tebas, nor to the great imprecision in most of what he says, which