Former Portsmouth chairman Milan Mandaric has admitted ongoing suspicions of corruption in football are a "huge concern" for those in the game.

City of London police on Monday executed search warrants at Pompey, Newcastle and Rangers as part of their investigation into corruption, and it was reported yesterday that the transfers of Amdy Faye and Jean-Alain Boumsong to the Magpies were being scrutinised.

While there is no suggestion that any of the clubs have been involved in wrongdoing, Mandaric, now chairman at Leicester, is adamant persistent speculation surrounding the integrity of the game cannot be allowed to go on.

"For all of us in football this should be a huge concern, we don't want things like this to happen," he said.

"We want to keep football clean, keep it as a beautiful game. Anything wrong, corruption, is totally unacceptable to everyone who's in football".

Mandaric is unhappy at the manner in which the investigation - not linked to Lord Stevens' inquiry into illegal payments in the Premier League - has been conducted by police.

Mandaric was at the helm at Fratton Park for eight years until leaving last September and is convinced officers will find nothing untoward at the south coast club.

"It's giving football something it doesn't really need at this time," Mandaric added.

"Especially I'm talking in the case of Portsmouth, where you know there is nothing there.

"I think if they police want to give something to the public they should have some facts, and then give that to the public.

"Just making an assumption and giving some information out before they have any information, I think that's wrong".

The City of London force have defended their handling of the raids, however, and insist the names of the clubs were only made public with their agreement.

A spokesman said: "City of London police only confirmed the name of Portsmouth Football Club to journalists once we had received confirmation from Portsmouth that they had identified themselves to the media".

Regardless of this week's events, Mandaric is convinced Pompey will emerge unscathed.

He added: "When I was at Portsmouth, to my knowledge we never had any problem.

"I don't have the details, but as far as I'm concerned Portsmouth have done nothing wrong".