IFAB approves trial of concussion subs By webmaster - December 16, 2020 314 0 Football’s lawmakers have approved the introduction of permanent concussion substitutes on an initial trial basis from January. RELATED ARTICLES Sports Havertz penalty rescues draw for Arsenal against Bayer Leverkusen Sports Golf leaderboards: Latest scores from around the world Sports Aston Villa latest: McGinn set to return but Cash, Kamara and Tielemans still out