Southampton boss Ralph Hasenhuttl admits he is scared his best players could be picked off this summer.
Saints have had a strong second half of the season and are comfortably in mid-table with three games left to play.
Midfielder Pierre-Emile Hojbjerg has already said he will not sign a new contract, Ryan Bertrand has impressed at left-back while Danny Ings has scored 19 goals and may interest top clubs.
Hasenhuttl says it is part of the fabric of being Southampton manager.
"I'm always scared that players playing well in our team are interesting for others," he said ahead of hosting Brighton tonight. "But this is our situation we have to live with. It's normal for us. We are a developing club. We develop players who are young but we also develop players who are a little bit older.
"If they then outperform and another club comes and says, 'He's interesting for us', then we cannot stop them going.
"The players know what they have with us. If a big club comes and wants to sign them, even if he has a (long) contract we have no chance to compete with them.
"But that's not a problem. This is part of the business.
"We have to first finish the season and then we will have a look at what happens."
Southampton vs Brighton
St. Mary's Stadium, Tonight, 8.15pm