England striker Jamie Vardy believes players and fans cannot feel like they are being left in the dark if video assistant referees (VAR) are to succeed.
The much-discussed system was once again thrown into the spotlight during England's 1-1 friendly against Italy at Wembley on Tuesday, as Three Lions debutant James Tarkowski was penalised for a foul on substitute Federico Chiesa in the box during the closing stages.
Referee Deniz Aytekin awarded a penalty after consulting the pitchside monitor, leaving Lorenzo Insigne to convert from 12 yards and cancel out Vardy's emphatic first-half opener.
England boss Gareth Southgate complained afterwards that the Tarkowski incident was not "clear and obvious", citing the guidelines for VAR where such a phrase actually does not feature.