West Yorkshire Police have tweeted that Police Horse Bud has received dozens of messages of support in the post. Bud was attacked in football riots in Newcastle at the weekend.
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John Newman said "there are people in far worse situations than me and I want to give them a bit of hope".
The beloved British high street chain will disappear from Britain's towns on Sunday as the last stores close down.
David Wagner insisted the hard work would continue after Huddersfield Town's 1-0 victory over Wolves kept them top of the Championship.