As reported in later editions last night, the Scottish Football Association has launched an anonymous whistleblowing hotline.
The game's governing body said the campaign, dubbed Keep It Clean, was designed to "stay one step ahead of the growing threat of match-fixing".
Fraser Wishart, PFA Scotland chief executive, said: "Players are often the most vulnerable people in the game when it comes to those who seek to perpetrate match-fixing.
"We work tirelessly with FIFPro, the global players' union, to provide a support network, and closer to home, have established a joint education programme with the Scottish FA to ensure players have access to information to protect them from this growing threat."
Players, coaches, and club officials, are being urged to contact the "security and integrity" hotline with concerns.
Launched at Hampden Stadium, the scheme is also aimed at match officials, including referees.
Stewart Regan, SFA chief executive, warned those involved in football must be "vigilant".