Martin Jol claims Fulham have received no bids for Clint Dempsey or Moussa Dembele and insists he wants to keep the duo at Craven Cottage.
Dempsey's 23 goals for the Cottagers this season have prompted speculation linking the American with a move elsewhere.
Belgium international Dembele is also regarded as having a bright future but the Fulham boss has made it clear interest in his best players is not welcome.
"There are no clubs who have come in for bids," said Jol. "Even if they put a bid in they are not for sale.
"Of course you worry because I want to keep my best players. If we can do that and add two or three, we could have a very good squad.
"I feel they still will be here (next season)."
Dempsey will miss Fulham's final game of the Premier League season at Tottenham on Sunday after picking up a groin injury.
The game marks Jol's first return to White Hart Lane since he was sacked by Spurs in October 2007, just months after leading the club to their highest league finish since 1990.
The Dutchman had failed to deliver Champions League football due to a last day defeat at the hands of West Ham, and Tottenham could be set to miss out again if they lose to Fulham.
But Jol's main priority is getting the win that would give his team 55 points for the season and could see them finish seventh if results elsewhere go their way.
"I feel Spurs need to play in the Champions League," he added.
"You can't blame me for wanting the three points to get to 55 points."