Everton are facing a fight to keep hold of Muhamed Besic in the coming months, according to a report in the Daily Mail.
The Bosnian midfielder is said to have attracted the attention of a number of clubs across Europe, and the Toffees are expecting to have to fend off bids for the midfielder this summer.
Everton's failure to make it into Europe, combined with Besic's lack of first-team football, has led to potential suitors feeling that he could be available.
Roberto Martinez is understood to be keen on retaining the 22-year-old, who has largely impressed when called upon, but the Spanish manager may have little choice but to let him go if the right offer comes in.
Besic started the campaign looking as if he could become an integral part of the Everton team, but his chances have gradually dwindled as the season has progressed.
The combative central midfielder has not started a Premier League match since the start of March, and he could be growing frustrated at his lack of competitive minutes.
If Everton were to lose Besic it would be a blow to their future plans, as Martinez is planning on keeping the core of his team together as he looks to build squad capable of challenging for a top-four finish in the years to come.