Swansea City will sign Aston Villa forward Jordan Ayew in a deal which will see Wales international Neil Taylor go the other way.
Head coach Paul Clement expects the transfer will be concluded on Tuesday with Swansea paying up to £5m - plus Taylor - for the Ghana international.
"It is not done yet, but it is close to being done," he said.
"Neil has been a great servant to the club, but the time is right for a new challenge."
The 25-year-old Ayew, whose brother Andre played for Swansea last season before joining West Ham for £20.