James Doyle is facing a short spell on the sidelines after being diagnosed with a viral infection.
Wathnan Racing’s retained jockey did not ride at York on Thursday after feeling unwell and will now miss the final two days of the Ebor Festival, with his return to action expected next week.
Doyle said: “I felt unwell during racing on Wednesday, underwent tests on Thursday and have been diagnosed with a viral infection. I have been prescribed antibiotics and have been advised to rest for a few days.
“It’s hugely disappointing to be missing important rides, but I wish the team well and look forward to being back in action shortly.”
Doyle’s rides over the next two days included Night Raider in the Coolmore Wootton Bassett Nunthorpe Stakes, with Danny Tudhope now taking the reins, while Robert Havlin will step in to partner French Master in the Sky Bet Ebor on Saturday.