Janos, brought to the club by former boss Peter Jackson, has been told he can leave the club should a suitor be found.
The giant Hungarian has become a popular figure at Sincil Bank with his passion for the club striking a chord with the paying fans.
However this hasn't won over manager Chris Sutton and he's today revealed that the player can leave the club. He's fallen down the pecking order after the arrival of Adam Watts and Nathan Baker on loan. Danny Hone would also appear to be rated more than Janos.
Both Grimsby Town and former side Chesterfield are thought to be monitoring the 25 year old defender.