Lazio apparently want to get their money's worth when Inter return for Aleksandar Kolarov this summer, whacking an €18m price tag on the Serb.
The Nerazzurri were in negotiations for the 24-year-old during the January transfer window, but Claudio Lotito drove a hard bargain.
Inter's chief technical director Marco Branca is said to have offered Lazio €12m plus Rene Krhin and another top prospect from the club's academy.
But according to reports in Italy, Lotito will only accept a lump sum of €18m, something Inter might not be willing to pay considering they already have a top prospect in Davide Santon at full-back.
Kolarov has already expressed his desire to join Inter and reunite with former Lazio teammate Goran Pandev who left the capital in January.
He also intimated that there is very little chance of him extending his existing deal with the Biancocelesti beyond 2011.
