Footballers of Czech club FC Banik Most have reportedly been ordered to take lie detector tests in order to discover if their poor form is down to match-fixing.
The second division outfit have lost nine league fixtures in a row, conceding 15 goals while only scoring four, and have failed to pick up three points since January 7.
Despite the club's stance, world players' union FIFPro believe that lie detector tests are not always reliable.
Head of Legal Department Wil van Megen: "Many scientists have criticised the use of the lie detector. They are not convinced that this tool is the most accurate to determine whether someone is telling the truth or lying.
"Experts say that people can cheat at these tests, that people can be influenced while taking these tests, that these tests can give the wrong results. Simply put, lie detector tests are dubious."
Van Megen went on to claim that the players in question have not been paid for March.