Galatasaray have claimed that Manchester United have been "scared" off Wesley Sneijder because of his valuation.
Sneijder had been linked with a move to the Premier League for over two years before he agreed to join Gala at the start of 2013, and has been linked with United on a number of occasions.
Last September, the Turkish club claimed that David Moyes failed with a bid to sign the Netherlands international shortly before last's summer transfer window closed.
Moyes was sacked by United in April, and Van Gaal took charge at Old Trafford earlier this month, leading to renewed reports linking the playmaker with a move to Old Trafford.
Speaking last month, 30-year-old Sneijder said he would consider any offer to play under Van Gaal at club level, and Gala president Unal Aysal recently admitted he could be powerless to stop a deal from happening should United look to lure the player away from Turkey.
But Aysal believes Gala's valuation of Sneijder - who has a €20million buy-out clause - and team-mate Fernando Muslera, has led to clubs cooling their interest.
Goalkeeper Muslera is reportedly a target for Monaco, who have money to spend following the big-money sale of James Rodriguez to Real Madrid on Tuesday.
"With regards to Muslera and Sneijder we have not received an offer for either player," Aysal told Turkish-Football.com.
"Both these players are very important to our team and as a result we value them accordingly.
"We won't release these players for any less than our asking price and that has scared a few interested parties away.
"If a club wants either of these players they are going to have to pay up as we are obliged to listen to any offers which meet their release clause. If their release clause is activated there is nothing we can do."