Mary King and Tina Cook have both withdrawn their rides from the Rolex Kentucky CCI**** in America (23-26 April) due to viruses.

Tina Cook’s double Olympic bronze medallist Miners Frolic (pictured) was due to make his four-star debut at the event.

“He’ll now have a few easy weeks and then hopefully aim for the Chatsworth World Cup qualifier and Luhmühlen,” said Tina.

Mary King had Imperial Cavalier, third at Burghley last year, entered for Kentucky, but reports her whole yard is down with a virus, although they are showing different symptoms to Miners Frolic.

“They have a temperature peak for about 12 hours, then coughing, a snotty nose and phlegm and are a bit dull,” she said.

Mary has both Imperial Cavalier and Apache Sauce, fourth at Burghley behind his stable-mate, entered for the Mitsubishi Motors Badminton Horse Trials (7-10 May) and is keeping her fingers crossed that they are able to go there. She has withdrawn all her rides from Burnham Market this weekend.

The British horses still entered for Kentucky are: Navigator and Seacookie (William Fox-Pitt), Tankers Town (Sharon Hunt), Carousel Quest (Oliver Townend), Woodfalls Inigo Jones (Lucy Wiegersma) and Opposition Buzz (Nicola Wilson).