The subject of concussion substitutes is a hot topic right now following the accidental clash between David Luiz and Raul Jimenez on Sunday. Mikel Arteta in favour of introducing a new law to helps clubs facing the issue we found ourselves in - and believes it would help medical staff, managers and the players themselves.   This is what he told the media:   on David Luiz… He is feeling fine, obviously he had a really nasty cut but they keep monitoring him and checking him, and he was absolutely fine. We made a statement to clarify the situation. Some people can have the perception of whether he should have continued or not, thankfully we have one of our leading authorities in this...
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