Club asset Nicklas Porsing has replaced Rory Schlein at King's Lynn.
The Dane, who rode for the Stars from 2013 to 2015, will take the place of the popular captain after he's made his final appearance at Wolves on Monday.
Co-promoter Dale Allitt said: 'It's never nice to have to make this sort of decision, especially when we all know what Rory has been through over the last couple of years and how hard he's worked to get back, but there's no doubt it's been difficult for him.'
Schlein, 31, suffered serious spinal injuries in May 2015 and was sidelined for a large part of this season with a shoulder problem.
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