The Scottish Professional Footballers' Association believe the recent signing of Tony Vidmar by Middlesbrough can leave the transfer window system ajar for all unemployed players.
The FIFA window shut on August 31 leaving many players without clubs until its re-opening in January.
The world governing body had wanted the window to act as a buffer for spiralling debts among clubs across the country.
But many have voiced concern about the system which did not appear to legislate for flexibility.
However, former Rangers defender Vidmar joined the Teessiders on Monday under a special dispensation following the closure of the transfer window because he was out of contract with his previous club.
Now SPFA assistant secretary Fraser Wishart believes the 33-year-old Australian international's move can act as a crowbar to 'jemmy' open the transfer window for players.
Wishart said: "There are a huge number of players who have been lost to the game due to the transfer window system.
"We have been looking at the Tony Vidmar situation. He has signed for Middlesbrough as an unemployed player. "FIFA have given the all-clear for his registration so perhaps there will be a change in that.
"We need to ratify the registration situation with that. We understand the transfer windows are designed to bring some stability to football and stop huge money transfers getting clubs into trouble.
"But it is certainly having an affect on our players and it has come at the wrong time with the financial situation the way it is.
"We hope the Vidmar move can act as a ground ruling.
"I know from speaking to our contacts down south that they were very pleased that FIFA ratified his registration.
"Alloa are now looking to sign an unemployed player to replace a long-term injury victim.
"FIFA are looking favourably at unemployed players but it will be on a case-by-case basis. "It is a glimmer of hope for everyone involved in the game."