It has been revealed why Tariq Lamptey wasn't sent off following an incident with Mykhailo Mudryk. The duo collided with one another during the first half of Brighton's clash against Chelsea at the Amex Stadium on Wednesday night.

Lamptey and Mudryk engaged in a duel in the Seagulls' half, with latter catching an elbow to the jaw. The Blues winger fell to the ground in a heap holding his head, and he quickly received on-field medical attention.

While Chelsea staff tended to Mudryk, who remained motionless, the Video Assistant Referee – led by Peter Bankes and his assistant James Mainwaring – reviewed the incident at Stockley Park. After much deliberation, the Brighton defender was adjudged to have not committed a foul due to 'no conclusive evidence'.

Just minutes later, the west London outfit opted to use a concussion substitution, replacing the Ukraine international with Christopher Nkunku. The former RB Leipzig forward, who's recently returned from injury, enjoyed brief cameos against West Ham and Nottingham Forest earlier this month.

Concussion substitutions were introduced by the Premier League in February 2021. Each team is permitted to use a maximum of two concussion substitutions in a match following consultation with the on-field referee and the club's team doctor.

An official statement from the English top flight reads: "Following extensive consultation with medical experts and National Associations to find ways to improve management of possible neurological head injuries in football matches, the IFAB have approved trials to use APCS.

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"The IFAB, who oversee the Laws of the Game, believe that where there is any doubt about a player having been concussed the players should be protected by being "permanently" removed from the match and to facilitate this, the player’s team should not suffer a numerical disadvantage by prioritising the player’s welfare.

"Premier League clubs agreed in principle on 17 December 2020 to take part in the IFAB trial, using two APCSs for each match."

With regard to what happens next to Mudryk, the Premier League adds: "As well as any formal clinical assessment of the replaced player, his recovery will be audited by the relevant medical staff to ensure that The FA’s concussion guidelines for an advanced care setting are followed for his return to action.

"If the formal post-match medical assessment reveals no concussive injury, then the player is cleared to return to training as directed by the club’s medical team. Any club who have carried out an APCS must submit to the Premier League, medical information on the player as well as a report of the APCS procedures within seven days of that player returning to training or playing."