Opinion, Referee right to protect players from objects thrown on pitch

HK referee Liu Kwok-man was correct in law and common sense to take players off the field when Iranian fans threw explosive projectiles

Attwell should be 'sacked' for missing 'worst tackle in years' by Man Utd player - Crooks

Referee (association football) - Wikipedia

Official (gridiron football) - Wikipedia

Rio Ferdinand hit by coin: shameful scenes in Manchester derby

How Semi-Automated Offside Technology Will Change Qatar 2022 World Cup

Law 12 - Fouls and Misconduct

The 5 Top Challenges For Referees - The Third Team

Turkish ref says 'It's MY fault' after he's punched by club's president and kicked on the floor, leaving him with cheek fracture, then rescued by cops as fans throw missiles following 97th-minute

OU in race for nation's top tackle

Turkish football plunges into crisis after referee attack, National

Officiating debate: Don't blame refs (or attack them) but don't eject Nikola Jokić either! - The Athletic

Ifab plans concussion substitute trials and 'philosophical' review of offside law, Laws of football

Referee