Morton boss Jim Duffy has completed a double signing as he builds his squad for 2014/15.
Defender Lee Kilday, 22 makes the move to Cappielow after leaving Hamilton Accies, having made his debut for the New Douglas Park side back in 2011.
He is joined by Elgin City centre-half Sean Crighton - the 24-year-old former St Mirren and Montrose player is also a youth academy coach with the Greenock club.