Following an untidy tackle, England captain Dylan Hartley needed an HIA after just 42 seconds and brutal fans on social media were all making the same joke.
Here's what fans were saying:

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Dylan Hartley back after head injury assessment. Verdict. ‘We found a fragment of brain in his skull!’
Isn’t it an oxymoron that Hartley has passed a head injury assessment? There’s no sense there at the best of times...