Goalkeeper Ryan Crump signed at the Merseyrail Community Stadium to join Southport.
A tall and athletic goalkeeper, with international honours for Scotland up to under-17 level, he started his career with Liverpool.
After his release from Anfield, Crump joined Blackburn Rovers in August 2014 after impressing on `work experience`.
He featured mainly for the under-21 side at Ewood Park.
After agreeing terms with manager Andy Bishop, Crump will compete with Ty Belford for Port`s number one spot.