Chris Cook trained at Newcastle's City Pool, which is due to close next year because of council budget cuts.
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The win rekindle's the Black Cats' survival hopes and pile the pressure on United manager Louis van Gaal.
Eddie Hall, 41, had been working as a chef in Ho Chi Minh City for over a year but was reported missing in January.
Feeling cold with wintry showers. Overnight frosts. Warnings of snow and ice issued