Josh Earl has agreed a new contract with Preston, the Sky Bet Championship club have announced.
Tranmere have signed Ben Pringle on loan from Preston until the end of the season.
Preston have signed striker Jayden Stockley from Exeter for an undisclosed fee, the Championship club have announced.
Preston have signed winger Josh Ginnelly from Walsall for an undisclosed fee.
Preston manager Alex Neil does not expect Wales international Billy Bodin to play again this season.
Struggling Preston have been dealt another injury blow after Josh Harrop was ruled out for the rest of the season with a ruptured anterior cruciate ligament.
Boss Alex Neil praised 'outstanding' Callum Robinson after Preston's Carabao Cup exit to Middlesbrough on penalties on Tuesday.
Preston midfielder Paul Gallagher has been handed a three-game ban for an elbow on Stoke City's Joe Allen.
England Under-21s striker Lukas Nmecha has promised to deliver goals after signing for Preston on a season-long loan from Manchester City.
Preston's Sean Maguire and Billy Bodin will be out for 'the best part of' two months and six months respectively due to injury, boss Alex Neil has said.