The video assistant referee - VAR - will be introduced in the Premier League next season and is set to be one of the most significant and contentious changes to the game in England for some time.
Football has generally been reluctant to embrace technology compared to other sports. The likes of tennis, rugby and cricket have used video replays or ‘hawk-eye’ technology for several years, yet football was always resistant.
Goalline technology was belatedly introduced in 2012 but only after a series of high-profile errors, most notably Frank Lampard’s ghost goal against Germany at the 2010 World Cup.