When getting to grips with the rules of NFL and American Football, it's crucial that defensive linemen know the rules for offside and neutral zone infractions to avoid costing their team.

If the SAOT trial is considered to be a success, the Premier League will look to introduce the technology at a later date.

Semi-automated offside technology has never been used in competitive English football Semi-automated ... officials in the video assistant referee (VAR) room must decide on three key things ...