Blackpool are hoping to hang on to Shaun Barker following Derby County's bid for the defender.
Skysports.com confirmed the Rams have made an undisclosed offer for Barker, who has one year left on his contract.
Nottingham Forest have also been linked with a bid for the 26-year-old, but Blackpool chairman Karl Oyston wants to keep the full-back.
"We always want to retain our better players and Shaun definitely fits into that category," said Oyston.
"So unless anything changes drastically between now and August then he will be starting here next season.
"We're not touting our players around and never have done.
"We can't foresee whether other clubs will come along and make offers, but football's a funny animal and it's that time of year where clubs and agents are scrabbling round trying to make links."