Morton have signed Stranraer skipper Frank McKeown on a one-year deal ahead of their 2015/16 campaign in the Ladbrokes Championship.
The 28-year-old central defender was previously with Arthurlie Juniors and helped Stranraer reach the play-offs in League 1 in each of the last two seasons.
McKeown becomes Cappielow boss Jim Duffy's second signing of the summer, with winger Bobby Barr having been snapped up from Brechin City.