Said Benrahma will only complete a permanent move to West Ham if he passes a second medical at the end of the season.
The Hammers completed the loan-to-buy signing of the attacker, 25, from Brentford on deadline day but only after a hastily drawn up agreement following some late complications.
The deal was placed in jeopardy because his medical last week discovered a lung issue that concerned West Ham medics.
The Hammers announced the signing of Benrahma on an initial loan worth £5m with an “agreement” to become permanent next summer.
That “agreement” is, however, dependent on a significant caveat.
A recruitment source has told Football Insider that the deal will become permanent only if Benrahma, 25, passes a second medical at the end of the season.
If he does, West Ham will pay Brentford a further £12m, as well as up to £8m in add-ons if he signs a new deal at the club in the future or is subsequently sold to another Premier League team.
It means the Algeria international could yet return to the west London-based Bees.
Benrahma‘s arrival at the London Stadium did at least temporarily ease the pressure on the board, who have attracted huge criticism from fans after the sale of Grady Diangana to West Brom earlier in the summer.
We are pleased to announce the signing of Algeria international Saïd Benrahma on loan from Brentford ✍️⚒#WelcomeSaid
— West Ham United (@WestHam) October 16, 2020
The Hammers have been on a far tighter budget than in previous seasons but have substantially trimmed their wage bill by loaning Felipe Anderson to Porto and negotiating the termination of Jack Wilshere’s contract.
West Ham also freed up cash with the sales of Jordan Hugill, Albian Ajeti and the free transfer of goalkeeper Roberto.
In other news, a huge Michail Antonio-West Ham update can be revealed.