Joel Valencia is having a medical ahead of his expected transfer to Brentford.
The 24-year-old Ecuadorean forward is set to move to Griffin Park for £1.8m from Polish side Piast Gliwice.
He scored six goals in 33 appearances in the Polish top flight last season and previously played for Spain at youth level.
The Bees have been keen to sign another forward this summer regardless of whether Neal Maupay, Said Benrahma or Ollie Watkins, who have all attracted Premier League interest, leave the club.
And they want to bring Valencia in before the opening game of the season, against Birmingham this weekend.