Sport interrupted: Weird moments that stopped the action

As footage emerges of a steam train rolling through a ground to interrupt a football match in Slovakia,, external BBC Sport takes a look back at other strange moments when the sport was upstaged by an unexpected interloper.

Highlights include a groundhog in Formula 1, an alarm in the Football Focus studio and a dog in a rugby union ruck - plus a loud-voiced BBC reporter at Wimbledon.

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