Leeds boss Marcelo Bielsa has doubts over three defenders ahead of their clash with Brentford.
Liam Cooper, Barry Douglas and Ezgjan Alioski will all be assessed as the manager considers the demands on his players during the early weeks of the season.
If full-backs Douglas and Alioski fail to make it, Bielsa has a contingency plan to play Jamie Shackleton on the right and Stuart Dallas on the left.
Loan signings Helder Costa and Eddie Nketiah are yet to make first league starts for the club.
Brentford boss Thomas Frank has no new selection problems ahead of the trip to Elland Road.
Christian Norgaard started Saturday’s 1-1 draw with Hull, while Said Benrahma came on as a substitute and midfielder Kamohelo Mokotjo was unused from the bench on their return from injury.
However, defender Ethan Pinnock missed out once again with the knock he picked in the 1-0 win at Middlesbrough on August 10 and remains a doubt.
Summer signings Dominic Thompson and Joel Valencia are still to make first league appearances for the club after being handed debuts in the Carabao Cup defeat by Cambridge.