French-based jockey Christophe Soumillon has tested positive for COVID-19 and has been stood down from his rides on Tarnawa (Ire) (Shamardal) and Order of Australia (Ire) (Australia {GB}) in Saturday's GI Breeders' Cup Turf and GI Breeders' Cup Mile, respectively. Colin Keane will take the ride on Tarnawa, and Pierre-Charles Boudot has been named on Order Of Australia. Soumillon was tested for coronavirus on Wednesday at Keeneland and upon receipt of the positive result on Thursday, another test was performed which also came back positive. Soumillon is now in isolation...