Spanish striker Borja Baston is undergoing his Swansea City medical ahead of a £15m club record signing.
The 23-year-old Atletico Madrid forward, who scored 18 La Liga goals on loan at Eibar last season, is to join the Welsh club on a four-year deal.
The Swans have already signed fellow Spaniard and World Cup winner Fernando Llorente from Sevilla as they look to replace West Ham recruit Andre Ayew.
Swansea's previous record fee was £12m they paid for Wilfried Bony in 2013.
"I was happy with the squad before but I am more happy now because, with Fernando Llorente and Borja Baston," said aid Swansea head coach Francesco Guidolin.