Villarreal forward Nicolas Jackson is undergoing a medical for Chelsea this weekend as he looks to complete his £30million move.
Chelsea are negotiating the structure of the fee, with Todd Boehly splashing the cash again as he looks to restructure the Blues squad.
The 21-year-old, who has played twice for Senegal, scored 13 goals last season in a breakthrough campaign at Spanish side Villarreal.
He bagged nine goals in his last eight games, as the Yellow Submarine finished fifth in the La Liga table.
The club are in need of forward players after struggling in front of goal last season, and will add Jackson to the addition of Christopher Nkunku, who joined this week.