Anywho... Many are against me calling the massively physical, butch, non-feigning injury etc. etc. sport, but whilst being a serios matter, I do find the choice of colour amusing...
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"Pink cards are a new addition to the world of football, introduced to improve player safety and concussion protocols. According to the search results, pink cards will be used to notify referees of a team making a substitute due to a concussion or head injury. This new rule aims to ensure player safety and fairness in matches."