Harry Skelton, a former champion jockey, missed the two-day Scottish Grand National meeting due to an injury he sustained during his fall from Cheltenham in the Silver Trophy at Cheltenham on Wednesday.
Skelton, who is on track to finish fourth in the championship this season, was set to ride in several races at Ayr.
He had two wins at the Grand National meeting last week. However, he has been forced to withdraw from the event after suffering a shoulder injury.
“He’s hurt his shoulder and obviously it’s the time of year when you can give yourself plenty of time,” his brother, Dan Skelton, told Racing TV.
“I think whatever the prognosis is, he can add a little self-control into that and if he needs any longer he can give it that.
“I don’t know what it is at the moment, he’s going to see a specialist tomorrow just to make sure there’s not too much unknown damage.
“He says he feels quite good so that’s a positive, but if he needs X-weeks, he might take X plus two just to make sure just because of the time of the year it is.
“Expect him when you see him.”