FILE PHOTO: Soccer Football - Champions League Semi Final First Leg - Tottenham Hotspur v Ajax Amsterdam - Tottenham Hotspur Stadium, London, Britain - April 30, 2019 Tottenham manager Mauricio Pochettino during the match Action Images via Reuters/Andrew Couldridge
(Reuters) - Tottenham Hotspur manager Mauricio Pochettino will back potential changes to the concussion protocols after defender Jan Vertonghen suffered a serious head injury against Ajax Amsterdam.
Vertonghen collided with team mate Toby Alderweireld while trying to beat Ajax goalkeeper Andre Onana to the ball during Tuesday's Champions League semi-final first leg.
