LONDON - Shaikh Hamdan bin Rashid Al Maktoum, Deputy Ruler of Dubai and UAE Minister of Finance, and Dr Shaikh Sultan bin Khalifa Al Nahyan, Advisor to the President of the UAE, and President of Emirates Equestrian Federation (EEF), and other Shaikhs attended the 6th leg of The President of the UAE Cup Series for purebred Arabian horses at Newmarket racecourse, UK.