Jesse Marsch says Leeds are expecting boyhood Whites fan Erling Haaland to "cause issues" when they face Manchester City on Wednesday.
City's Premier League top scorer Haaland was born in Leeds when his father, Alf Inge, played for the club.
Marsch was previously Haaland's manager at Red Bull Salzburg and says the Norwegian had texted him ahead of City's trip to Elland Road.
"He texted me as soon as the schedule came out," said Marsch.
"I gave him permission to have a small hamstring injury for that match!
"He was born in Leeds, his father has history here and he has the club in his heart because of that.