A trio of Gibraltar-based bookmakers have found themselves of the wrong side of the UK Advertising Standards Authority (ASA) after tweeting photographs of American professional golfer Jordan Spieth.

The pictures of the 22 year old Texan appeared on the Twitter accounts of bet365, ToteSport and Coral, prompting complaints that they breached UK advertising rules which prohibit the use of images of people under the age of 25 in gambling-related marketing communications.

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