FIFA's new medical director, Andrew Massey, confirmed the decision on Thursday during an interview with the in-house YouTube channel of world football's governing body

Issa Diop suffered a head injury during West Ham's FA Cup tie at Manchester United, with Ryan Fredericks his concussion replacement

Premier League clubs will be allowed to make additional substitutions in the event of players suffering suspected concussion

Recently, concussion specialist had urged authorities to consider banning the use of bouncers against players below the age of 18 in order to limit long-term complications.

Players with suspected head injuries can be replaced permanently in Club World Cup games in addition to the team's five substitutes

Pucovski has history of bouncing back strongly from concussion-induced breaks

Chappell rejected banning bouncers but talked about strengthening laws regarding the protection of lower-order batsmen

The run-up to the Test series between India and Australia was marked by a series of blows to the head and concussion-related substitutes, reviving the debate around the use of bouncers by fast bowlers

India's move to use concussion substitution raised eyebrows with many, including in the Aussie camp, questioning the intention and also the qualification for "like for like" criteria

India all-rounder Ravindra Jadeja was replaced by spinner Yuzvendra Chahal as a "concussion substitute" during their first T20I against Australia at Manuka Oval, Canberra on Friday