RIO DE JANEIRO (AP) — Germany midfielder Christoph Kramer's head injury in the World Cup final on Sunday has revived concerns about the way football deals with concussions.
It was the latest in a series of head injuries at the World Cup that raised questions about the sideline medical checks.
Kramer continued playing for 14 minutes in the first half of the final at Maracana Stadium after taking a heavy blow to the face in a collision with Argentina defender Ezequiel Garay. He was eventually replaced in the 31st minute after slumping to the ground, and the German football federation said he had a suspected concussion. It didn't give any more details.
Kramer appeared to be disorientated as he was helped off the field by medical staff. In his absence, Germany went on to beat Argentina 1-0 in extra time to lift the World Cup.
"I can't remember very much but it doesn't matter now," he said, shrugging off the injury. "I have to send regards to my grandmother. She has a birthday today and I couldn't reach her."
There were worrying head injuries for players earlier in the tournament.
Argentina players Javier Mascherano and Pablo Zabaleta also played on in their team's semifinal against the Netherlands in Sao Paulo after hard knocks to the head. Mascherano appeared to be completely disorientated and fell to the ground after a clash of heads with a Dutch player. Both Mascherano and Zabaleta started in the final.
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