![David Luiz: Alan Shearer calls for rule changes after clash of heads with Raul Jimenez](https://cdn.newsserve.net/ONPglobe256.png)
David Luiz: Alan Shearer calls for rule changes after clash of heads with Raul Jimenez
Match of the Day pundit Alan Shearer calls for changes to concussion protocols after Sunday's serious clash of heads between Raul Jimenez and David Luiz.
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