• 23-year-old scored 19 goals on loan at Eibar last season • Swansea hope striker can bolster attack after Andrew Ayew sale

This article is more than 4 years old

This article is more than 4 years old

Swansea City have agreed a club record fee, thought to be in the region of £15m, with Atlético Madrid to sign the striker Borja Bastón. The previous record outlay was for the striker Wilfried Bony from Vitesse Arnhem in 2013.

Everton expected to improve offer for Swansea’s Ashley Williams Read more

The 23-year-old is believed to be due in south Wales for his medical this week as the Premier League club act fast to replace Andre Ayew, who moved to West Ham United on Monday. Swansea sold striker Ayew to the London club for a club record £20.5m fee and club captain Ashley Williams is understood to be close to a move to Everton.

Bastón, who was born in Madrid, is a product of the Atlético academy but has spent the past five seasons out on loan away from the Vicente Calderón. The Spaniard scored 18 La Liga goals on loan at Eibar and scored 22 goals at Real Zaragoza the previous year.

The Swansea head coach, Francesco Guidolin, made Fernando Llorente his fourth summer signing on Friday, following the arrivals of Leroy Fer, Mike van der Hoorn and Mark Birighitti.