King's Lynn Stars will be without youngster Lasse Bjerre for Friday's visit of Poole Pirates.
Sheffield Tigers rider Josh Auty will replace the 17-year-old Dane, who is being called away by a rescheduled Danish meeting.
Stars boss Rob Lyon was unable to turn to Bjerre's doubling-up partner Sam Masters because of his commitment to Premier League Somerset.
"I don't expect it to be easy," Lyon said of the Poole clash.
"And I can see this being one of the hardest fought battles ever seen at King's Lynn. It won't be for the faint hearted, that's for sure."