Roberto Martinez has warned Premier League clubs he is in no mood to sell his top players.
Several Swans stars have been linked with moves away from the Liberty Stadium after defeat to Sheffield United dispelled any play-off hopes.
Jason Scotland has admitted he would be interested in a move to a Premier League club whilst Spanish duo Angel Rangel and Jordi Gomez have attracted admiring glances from elsewhere, with the latter set to return to Espanyol once his loan spell expires.
"We don't need to sell anyone," Martinez told the Western Mail.
"We don't have to sell players and I don't want to sell players. I'm very proud of that."
Martinez is adamant any transfer this summer will only be done with the interest of the club at the forefront of his mind.
"Even if a Premier League club meets our valuation of a player, then we will have to see if it is a good decision for Swansea. If it is something that goes against this club, it won't happen.
"Everyone has a price, but the good thing about this club is that we don't have to make a decision from a financial point of view. Every decision will be based on footballing reasons.
"We don't have to be worried about losing players, just proud that Premiership clubs are interested in them."
However, Scotland's revelation that he would like to play for a Premier League club saw Martinez say: ""He is under contract so he is going to be here (in August). We don't need to sell him and we want him to be an important player for us next season."
The Spaniard feels that Scotland gets better with age and hopes that Swansea can fulfill the striker's desire to play Premier League football.
"Jason is a late developer. I don't think he is the same as other players at his age.
"His best years are still in front of him. He is not like a normal 30-year-old where, having started at 18, his body is damaged.
"Jason is exactly the opposite and his experience is helping his talent to be effective on the pitch. So the older he gets, the more experienced and clinical he will be and he still has many, many years in front of him."