Explained: Why Referee Jarred Gillett will wear head-mounted 'RefCam' camera during Manchester United's clash with Crystal Palace
A head-mounted 'RefCam' camera will be used by referee Jarred Gillett during Manchester United's clash against Crystal Palace.
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- 'RefCam' used in Premier League for first time
- Gillett will wear camera during United clash
- The technology has been used in Bundesliga
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