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Edinburgh boxer John McCallum takes on 'life-changing' challenge against Olympic champion Evgeny Tishchenko
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Gypsy Pro Boxer John Mccallum Jr - Talks About Glittering Amateur Record & His Pro Career So Far - YouTube
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Scottish boxer John McCallum says family success won't save Leon McKenzie when the pair clash in London - Daily Record
Congratulations to Borders-based boxer John McCallum on his victory over Jevgenijs Andrejevs in his comeback fight last weekend. Here's a look back at... | By Greatest Hits Radio - Borders News | Facebook
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FIERY JOHN McCALLUM TALKS TO iFL TV AHEAD OF GRUDGE MATCH WITH LEON McKENZIE / 'WE NEVER STOP' - YouTube
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