Alan Combe has joined Hearts as goalkeeping coach but is not hanging up his gloves despite terminating his playing contract with Morton.
The 38-year-old former Scotland B international, who has also been registered as a player, left the First Division club on Friday.
"I don't want to hang up my gloves yet and feel I have two or three good years left in me," he told Hearts' website.
"I am registered as a player so won't be stopping just as a coach."
Hearts last month signed the experienced Peter Enckelman, who had been released by St Johnstone, on a short-term contract as back-up to Jamie MacDonald after Mark Ridgers suffered a long-term knee injury.
But the 35-year-old Finn has also picked up an injury, meaning 18-year-old Jack Hamilton was on the bench for Saturday's defeat by Dundee.
"I'm here to keep things ticking over and keep Jamie progressing," said Edinburgh-born Combe.
"He has done extremely well to get where he is, but my job is to keep him on his toes and push Peter at this moment in time to try to get the gloves off Jamie.
"And, when Mark gets back fit again, we should have all three fighting for that one position."
Combe, who has also played for Cowdenbeath, St Mirren, Dundee United, Bradford City and Kilmarnock, had not made an appearance for Morton this season and has been coaching at Second Division Alloa Athletic.
"I'm here as cover if we have any problems," he added.
"But I see myself pushing the guys every day and hopefully that keeps them on their toes."