Peterborough United owner Darragh MacAnthony said on Twitter his side have rejected two bids from Birmingham City for reported Derby County target Marcus Maddison.
Maddison is out of contract with the League One club this summer.
He has a release clause in his contract of £2.5 million. Peterborough appear resigned to losing him, but only if a club comes in and matches his clause fee.

TEAMtalk name several Championship clubs interested in the player. Derby are named among them, with the Rams looking to add another attacking player this month.
MacAnthony admits Posh have received bids for him. However, he names Birmingham City as the suitors and claims the Blues haven’t met his side’s valuation of the player.
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Maddison has been in excellent form for the League One club this season.
The 26-year-old, who is capable of playing out wide or as a number 10, has netted nine goals and posted a further six assists in 19 League One starts.
Peterborough sit just two points shy of the playoffs. Maddison’s form has instrumental, and he appears ready for a move to the Championship.
Football Insider claim Charlton Athletic have agreed a fee for Maddison. However, the player and London club have yet to agree terms with his wage demands a stumbling block.

If Derby’s interest in the former Newcastle United man is serious, now is the time to move.
Also see: £10m Derby target reportedly set to join league rivals after breakthrough
Also see: Derby reportedly close to agreeing new deal with 23-year-old forward