Swansea City are hoping for a busy week in the transfer market this week.
They would take the Argentinian midfielder on loan but Atletico are looking for a £20m sale.
And club chairman Huw Jenkins is back again for Andre Ayew, though West Ham are also holding out for £20m for the forward they brought from the Welsh outfit in August 2016.
Jenkins has put in the offer after hearing that the Oakwell side had offered a new deal to the defender.
Swans tried for Yiadom in the summer but he was sidelined with a back problem. Now they want to complete a move quickly.