All you need to know about the recent rule changes which have had an impact on football ahead of the new season
Yellow and red cards for misbehaving managers is the latest initiative designed to improve football's appeal.
The Football Association announced the new rule will apply to coaches guilty of misconduct during matches in the FA Cup, Football League, EFL Cup, EFL Trophy and National League.
Premier League managers, meanwhile, will receive verbal cautions for "irresponsible behaviour".
Here, Press Association Sport takes a look at significant changes introduced in British football in recent seasons.
GOAL-LINE TECHNOLOGY
Adopted ahead of the 2013/14 Premier League season, the technology uses a series of cameras to detect whether the ball has crossed the goal-line. The system, installed by Hawk-Eye, is millimetre accurate, ensuring decisions are correct and cannot be disproved by broadcast replays.
VANISHING SPRAY
Introduced to prevent opposition players encroaching at free-kicks, vanishing foam is sprayed on to the pitch by the referee to provide a temporary, visible marker. Its first usage at a major international tournament came at the 2011 Copa America, before it was introduced to football fans across the globe at the 2014 World Cup in Brazil. Premier League referees began carrying aerosol cans of foam from the following season.
RETROSPECTIVE DIVING BANS
The Scottish Football Association has had the power to retrospectively punish divers since the 2011/12 season. The initiative was adopted by the English Football Association at the start of last season, terming the offence 'successful deception of a match official'. Only incidents which result in a player winning a penalty or lead to an opponent being sent off can be punished, with the offender receiving a two-match ban.
VIDEO ASSISTANT REFEREE
Used repeatedly during the 2018 World Cup, video assistant referees were introduced in an attempt to eradicate 'clear and obvious' refereeing errors relating to goals, penalty decisions, direct red card incidents, and cases of mistaken identity. Video footage is reviewed by the VAR, who advises the referee via headset. Officials can then watch the incident by the side of the pitch before making a decision, or accept the information from the VAR and take appropriate action. VAR has been trialled in the FA Cup but has not yet been adopted by the Premier League.
BALL MOVEMENT AT KICK-OFF
In 2016, the way matches begin and resume following goals and half-time was changed. The previous law stated that the ball must go forward at kick-off and that players must be in their own half of the field. Players can now kick the ball in any direction, as long as it moves, with the kicker permitted to be in the opposition's half of the pitch.