Swansea City are exploring the possibility of signing Leicester City's Leonardo Ulloa as a replacement for Fernando Llorente.
The Argentine striker, 30, is keen to leave the King Power Stadium but the Premier League champions are reluctant to let him go while they have players on Africa Cup of Nations duty.
Chelsea want to sign Llorente as cover for Diego Costa and discussed the possibility of Michy Batshuayi going in the opposite direction to south Wales.
The Belgium international is not keen on a move to Swansea though which has prompted West Ham to revive their interest should he be allowed to leave on loan.