Cardiff City chairman Mehmet Dalman has revealed that the club are yet to receive any "firm offers" for their players this summer.
Striker Joe Mason has been linked with a move to Wolverhampton Wanderers, but Dalman has insisted that no-one considered key to Russell Slade's plans will be allowed to depart the Bluebirds before the start of the next campaign.
Dalman is quoted by Wales Online as saying: "We have not received a firm offer for any of our players yet.
"Those who are key to plans for the new season will be staying. Our target is to challenge for a top-six finish at least and we must have a squad capable of achieving that."
Cardiff finished in 11th place in the Championship last season.
