Chaparral's Longchamp run hinges on tests

High Chaparral’s participation in the Prix Niel at Longchamp on Sunday hinges on the outcome of tests to be taken later this week.

Aidan O’Brien’s Ballydoyle yard has been hit by an outbreak of coughing this summer and the trainer had not been happy with the dual Derby winner’s blood picture at the weekend, but still hopes to run Michael Tabor’s colt in France.