The Stoke City pig head stunt is the second prank at the club in a week.
On Sunday, striker Michael Owen tweeted pictures of his car pelted with eggs and flour.
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The LGA wants chains with more than 20 outlets to display calorie counts as part of a plan to tackle childhood obesity.
Run by the NSPCC the helpline allows employees in any sector to raise concerns anonymously.
PM used a speech in Hamburg to say that the UK will not 'pull up the drawbridge and retreat from the world' but Europe must change.