text: Zara Phillips saw her hopes of success at the Rolex Kentucky three-day event disappear in frustrating fashion on Friday. Phillips had travelled to the United States with her London 2012 and 2014 World Equestrian Games Great Britain team silver medal-winning ride High Kingdom. But Phillips, The Queen's granddaughter, withdrew before her scheduled dressage test at Kentucky Horse Park. Zara Phillips has had to pull out of the Kentucky three-day event after High Kingdom suffered an injury . Phillips won silver in the team Equestrian section of the Eventing at London 2012 on board High Kingdom . The horse was being tacked up in his stable ahead of its early evening test, UK time, when he kicked out and suffered a cut leg. High Kingdom was then taken to the dressage warm-up area, but the decision was taken to withdraw him in the horse's best interests. Kentucky is the first of this year's major competitions and Phillips had aimed high with High Kingdom there, although the horse is also entered for the Mitsubishi Motors Badminton Horse Trials, which begin on May 7. Phillips, 33, was due to make her debut in the Kentucky competition, which is one of six global four-star events along with Badminton, Burghley, Luhmuhlen in Germany, Pau and Adelaide. PHillips, The Queen's granddaughter, was due to make her Kentucky debut, but will now miss out . Great Britain eventing team boss Yogi Breisner, who is in Kentucky, has not ruled out the possibility of High Kingdom featuring at Badminton, depending on how the horse recovers and following a long flight home. "High Kingdom unfortunately had a kick in the stables and cut himself, which led to him being withdrawn," he told Press Association Sport. "He is still entered at Badminton, so we will see how he is when he gets back to the UK."
target: The Queen's granddaughter had been set to make her Kentucky debut .
  But High Kingdom suffered injury in stables and had to withdraw .
  Zara Phillips still hopeful the horse can competed at Badminton .