Australian A-League club Melbourne Victory said Monday they are determined not to lose Socceroo Mark Milligan after an offer from promoted English Premier League side Crystal Palace.
The London club have confirmed they are chasing the 28-year-old defender and Victory said they had received an offer.
But Victory said it was well below market value, with reports suggesting a bid of about Aus$500,000 ($460,000) with add-ons.
Victory coach Ange Postecoglou said he did not want to sell someone key to his plans for the new A-League season, kicking off in October.
"We value him very, very highly. we'd expect them to meet our valuation of him," Postecoglou said.
"He's the best player at our club, he's the best player in the country at the moment."
Milligan has a further two years remaining on his Victory contract.