West Ham are attempting to grab promising Spanish midfielder Pedro Mba Obiang, but the format of the deal seems to be causing a headache.
Obiang, who has been capped by Spain at Under-17, Under-19, Under-20 and Under-21 level, has been at Sampdoria since 2008 when he left Atletico Madrid at the age of 16.
Now 22, Obiang has made 95 appearances for Sampdoria but the Serie A side may be ready to let him move on to a fresh challenge.
The problem appears to be that West Ham want a paid loan agreement with the right to make the deal permanent while Sampdoria are keen for an outright sale.
Sampdoria are looking to get the money for Obiang as soon as possible in order to allow them to start moving on other transfer targets.
The two clubs are expected to talk again either today or at the start of next week to try and find a solution that works for all parties.
It isn't clear whether Obiang would welcome the move, but he would be likely to command a better salary, which would make the transfer attractive.