Leeds midfielder Stuart Dallas will miss Saturday’s Sky Bet Championship game at Derby due to a thigh injury.
The Northern Ireland international, a second-half substitute during last weekend’s opening-day win against Stoke, is expected to be sidelined for two weeks.
“Dallas is a very important player for us,” Leeds head coach Marcelo Bielsa said. “He can play on both sides and at different levels, so the fact that he won’t be with us for a while, we regret.”
Bielsa confirmed he had no other new injury concerns and hoped to name the same line-up at Pride Park which started Sunday’s 3-1 home win against Stoke.
Pontus Jansson is improving day-by-day, Bielsa said, following the centre-half’s late return to the club after the World Cup, but he is likely to resume on the bench.
That means full-back Gaetano Berardi will continue to partner Liam Cooper at the heart of defence.
Leeds have been linked with Everton’s Matthew Pennington, who spent last season on loan at Elland Road, and when asked if the club would be making any more signings before the transfer deadline, Bielsa said he could not be certain.
“I cannot give you a definite answer,” the Argentinian said. “If I had something concrete I would let you know.
“Usually I like to have two players for each position. Out of a group of 22 players, I like to have 18 players at the same level.
“I also like to have four youngsters who can improve their level to become first-team players.”
Derby also made a winning start under their new manager Frank Lampard last week and Bielsa is wary of the effect the former Chelsea midfielder has had on the club.
“The head coach of Derby is one of England’s former glory players and this always has a big influence on a team,” Bielsa said.
“Derby County is one of the six most important teams in the Championship.
“They have been at the forefront of the development of the Championship and while all opponents deserve to be respected, Derby deserve special respect.”