Brain injury charity Headway has demanded action from UEFA after Switzerland defender Fabian Schar was allowed to play on having suffered a concussion.
The Newcastle United star was knocked unconscious as he clashed heads with Jemal Tabidze early in Saturday's Euro 2020 qualifier against Georgia in Tbilisi.
Despite requiring treatment for an extended period, during which time Jano Ananidze reportedly prevented Schar from swallowing his tongue, the defender was permitted to continue playing.
Schar had a key role in both goals in a 2-0 win, but Headway is furious that an "incredibly dangerous" risk was taken with the player's wellbeing.
Charity chief Peter McCabe said: "What is it going to take to make football take concussion seriously?
"How many more players will have their careers and, more importantly, their lives and long-term health put at risk by the sport's inability to follow its own protocols?
"Put simply, the decision to allow Fabian Schar to return to the field of play after suffering a clear concussion was not only incredibly dangerous, but also a clear dereliction of duty.
"The player's comments after the match are also deeply disturbing and again show the lack of awareness and understanding among players.
"UEFA must immediately launch an investigation into the incident and explain why their protocols were not followed."
Upon seeing footage of the incident, Schar told Blick after the match: "It looks awful. I can't remember anything. I was out for a few seconds.
"My skull is still humming and I've got neck ache and a bruise on my forehead, but it was worth it."
Following the incident, Schar has been withdrawn from the Switzerland squad as they prepare to host Denmark on Tuesday.
La Suisse disputera le match contre le Danemark (mardi 26 mars 2019 à 20h45 au Parc Saint-Jacques de Bâle) sans Fabian Schär. Le défenseur central a reçu un violent choc à la tête lors de la victoire 2:0 en Géorgie. pic.twitter.com/IGnLCYIKWm— nationalteams_SFVASF (@SFV_ASF) March 25, 2019
23 de abril 2019
|Bucks´ progress an ´unbelievable journey´, says Giannis|
|Bucks complete sweep of Pistons, Jazz hold off Rockets|
|From Australia to Yokohama: Postecoglou wants to leave mark on Japanese football|
|Fowler ´can´t see´ Man United denying City|
|Fowler confirmed as Brisbane Roar coach|
|Miller doesn´t deserve to be in the ring – Joshua|
|Dyche dismisses ´anti-football´ accusations|
|First time in my life – Milner supporting United in Manchester derby|
|Cowboys´ Cooper describes relationship with Prescott|
|Zola suggests Chelsea to report Burnley after Sarri was allegedly ´offended´|
|Nets´ Dudley doubles down on Simmons comments|
|Hudson-Odoi says his season is over with ruptured Achilles tendon|
|Arthur backs Pakistan to mount World Cup challenge|
|David Luiz accuses Burnley of playing ´anti-football´|
22 de abril 2019
|Pogba blasts Manchester United for ´disrespectful´ performance in Everton humbling|
|NFL Draft 2019: Five sleeper prospects|
|NFL Draft 2019: Five potential first-round surprises|
|Chelsea 2 Burnley 2: Kante injured as Sarri´s men waste chance to go third|
|Kante off injured ahead of crucial period for Chelsea|
|Ruthless Saints thrash Hull FC, Warrington thump Rovers|
|Pant sends Capitals top despite Rahane hundred|
|AFC Champions League Review: Xavi stars in last-gasp Al Sadd victory|
|Brentford 2 Leeds United 0: Automatic promotion hopes hanging by a thread for Bielsa|
|Verdasco edges ahead of old rival Lopez in Barcelona, Mayer books Nadal date|
|Martic rallies to oust Zidansek in Istanbul|
|Heavyweight Ali pays the Price for bite|
|Championship Review: Sheffield United put the pressure back on Leeds, Norwich City held|
|Valverde to be patient with returning Barcelona star Dembele|
|Valencia winger Cheryshev to miss Copa del Rey final|
|DaMarkus Lodge relishing chance to prove himself as all-round receiver|
|Hassan named in Afghanistan World Cup squad|
|Bayern ´not easy´ for Sanches, accepts Kovac|
|Sissoko could miss two weeks – Pochettino|
|Pakistan announce Shadab Khan treatment plans|
|Coman and Gnabry impressing Bayern Munich boss Kovac|
|Khan will not retire on Crawford loss|
|Pavard: Bayern signed me because I am one of the best|
|Eels open new home by thumping tame Tigers|
|Folau´s Rugby Australia hearing set for May 4|
|Henderson urges Liverpool to ´keep believing´ in title race|
|McCollum driven by past Blazers failure|
|Hertha confirm broken ankle for rumoured Bayern target Stark|
|Young promises United response in Manchester derby|
|Mbappe won´t leave PSG, insists Tuchel|
|Warriors and Trail Blazers extend leads, Celtics reach Conference semis|
|Red Sox, Yankees claim extra-inning wins to continue turnarounds|
|Matic: Man United didn´t have leaders against Everton|
|Tuchel calls for Champions League patience after Ligue 1 glory|
|MLS Review: Vela leads LAFC rout, New York end winless start|
|Kerr backs Warriors star Curry to bounce back quickly|
|76ers star Butler, Nets´ Dudley fined after playoff clash|
|We always feel the same happiness – Al-Khelaifi revels in PSG´s Ligue 1 success|
|Paris Saint-Germain 2018-19: More goals and tighter at the back – the numbers behind Tuchel´s triump|
|Warriors´ Thompson says he ended slump by jumping in ocean|
|Maiden winner Pan claims RBC Heritage as Johnson capitulates|
|We cannot influence Manchester derby, neither can United – Klopp trolls Solskjaer´s men|
|Stevens proud of Celtics for keeping foot on the accelerator to sweep Pacers|
|DeRozan fined $25k for throwing ball at referee|
|Garcia and Mladenovic put past feud behind them to send France into Fed Cup final|
21 de abril 2019
|I am sure to stay at PSG – Mbappe insists he is not Real Madrid-bound|
|Special Foden has something that´s difficult to find – Guardiola|
|Sarri: Chelsea´s League Cup run on par with Tottenham´s heroics|
|Munster condemn pitch invader who confronted Vunipola|
|NHL awards 2019: Brent Burns, Mark Giordano, Victor Hedman named Norris Trophy finalists|
|Paris Saint-Germain 3 Monaco 1: Mbappe leads title celebrations with hat-trick as Neymar returns|
|Celtics sweep Pacers to advance to semi-finals|
|Neymar makes return from injury as substitute against Monaco|
|Words mean little – De Gea apologetic for disastrous Manchester United performance|
|PSG in Notre Dame jersey tribute against Monaco|
|Benzema the world´s best striker – Zidane|