Espanyol are open to selling centre-back Hector Moreno for the right price -- with Manchester United and Tottenham among the clubs weighing up a possible approach.
The Mexican international's agent recently revealed the 26-year-old defender is also likely to move away this summer.
"Moreno is leaving Espanyol. He wants to leave and we're looking for another team in Europe," the player's agent said.
Recent reports in Spain claimed Tottenham manager Mauricio Pochettino is considering launching a bid to secure his services.
The new Spurs boss has signed him once before, for Espanyol, during his time at the La Liga side and is now looking for a centre-back to replace Michael Dawson.
Meanwhile, new Manchester United manager Louis van Gaal is also reportedly monitoring the situation as he knows him well from his time at AZ Alkmaar and is also looking to bolster the back line following Nemanja Vidic's and Rio Ferdinand's departures.
And now Spanish newspaper Marca claims Espanyol are ready to cash in on the Mexican defender should any club exceed his €10m (£8m) valuation.
Reports said the Catalan club have already rejected a €9m bid from Russian side Rubin Kazan during the January transfer window but are now ready to accept any improved bids.
Marca says the Spanish side are yet to receive any formal offer even though United, Spurs and also Hull City have already expressed their interest.
Meanwhile, the Catalans hope the World Cup may increase his value as Mexico advance through the next round with the centre-back excelling in all group stage games against Brazil, Croatia and Cameroon.