West Ham expect to confirm the £30million signing of Brentford winger Said Benrahma on Friday.
The 25-year-old will undergo the second part of his medical on Friday morning prior to signing a five year contract.
The deal may end West Ham's transfer business with negotiations for Bournemouth striker Josh King dragging on.
Benrahma ironed out issues over a bonus payment with Brentford earlier in the week, while personal terms were discussed on Wednesday evening.
Benrahma was a standout performer in the Championship last season, netting 17 goals as well as recording 10 assists as they just missed out on promotion.