But with football's lawmakers yet to allow referees to consult high-tech aids, the trials and results will remain secret.
Hawk-Eye founder Paul Hawkins told The Associated Press that he is concerned that if his system contradicted a ruling on a disputed goal and the results were made public, the matchday officials would be undermined.
The sport moved closer to adopting goal-line technology earlier this month after the International Football Association Board approved another year of testing and FIFA president Sepp Blatter declared that it "helps referees."
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