Fulham are reportedly fearful that head coach Marco Silva could leave his role ahead of the 2023-24 season.
Silva, who was appointed Fulham boss in the summer of 2021, made an immediate impact at Craven Cottage, leading the team to promotion in his first season in charge.
The Cottagers continued to enjoy success under Silva last term, picking up 52 points to achieve a top-half finish for the first time since 2011-12.
Silva has been linked with a number of managerial jobs in recent times, including Tottenham Hotspur and West Ham United.
The Portuguese manager, who has a £6m release clause in his contract, is also said to be attracting interest from Saudi Arabian club Al-Hilal.
According to The Sun, Silva is in talks to switch agents, which has raised concerns among the Fulham hierarchy that he could leave this summer.
The report claims that the former Everton boss is considering whether to cut ties with his current agency ProEleven.
With Silva's contract set to expire at the end of next season, Fulham want to tie down their manager to a new long-term deal.
However, Silva is seemingly keen to take his time and weigh up his options before committing his future to the West London club.
In May, Fulham vice-chairman and director of football operations, Tony Khan, insisted that he was confident of retaining Silva's services.
Fulham are determined to keep hold of their key players in a bid to convince Silva to sign a new contract with the club.
They may have to fend off interest for Joao Palhinha, who has reportedly been identified as a Declan Rice replacement by West Ham United.
Antonee Robinson has also been linked with a move away, amid interest from Manchester City, Marseille, AC Milan and Inter Milan.
Fulham are hoping that Silva will still be in the dugout when they begin the new season with a trip to Goodison Park to face Everton on August 12. body check tags ::