Swansea City are expected to sign striker Wilfried Bony from Dutch top-flight side Vitesse Arnhem on Monday.
The deal could potentially cost £13m, depending on add-ons, for a player who scored 31 goals in 30 league appearances last season.
West Ham also put in an offer for the 24-year-old Ivory Coast international but Swansea look to have won the race for his signature with a higher bid.
Bony would be the Premier League club's seventh permanent summer signing.
They have also recruited Jonjo Shelvey from Liverpool, Alejandro Pozuelo from Real Betis, Jose Canas from Real Betis, Jordi Amat from Espanyol, Gregor Zabret from NK Domzale and Alex Gogic from Olympiakos.
Midfielder Jonathan de Guzman has also rejoined the club on a season-long loan from Villarreal.
The investment in the squad is a show of support for manager Michael Laudrup, who had said the Liberty Stadium outfit would have to strengthen for the 2013-14 campaign to build on last season's success.
Swansea won the Capital One Cup - beating Liverpool and Chelsea on the way to lifting the trophy - to qualify for the Europa League and finished ninth in the Premier League table.
Bony's arrival would take some of the pressure for goals off Swansea's Spanish attacker Michu, who scored 22 goals for the club last season.
The pacy and powerful Bony was named Dutch footballer of the year for 2012-13 and had spells at Issia Wazi, in his homeland, and Sparta Prague before joining Vitesse Arnhem in January 2011.
