Richards joined Casuals in January, having previously spent five months
with Austrian fourth division club FC Kitzbühel.
Having progressed through the youth ranks at Fulham, Richards featured for
the Lilywhites in the last pre-season friendly between the two clubs.
The full-back enjoyed loan spells at AFC Wimbledon and Aldershot Town in
2014 and 2015, and later joined the Shots on a permanent deal without making a
senior appearance for Fulham.
After thirty-six appearances in the National League, Richards headed to
Austria where he scored twice in seven appearances before injury forced his
return to England.
The 22-year-old made four appearances for the Stags.