Leading jockey James McDonald's Sydney autumn carnival will be cut short after the Australian Derby meeting at Randwick on Saturday.
McDonald lost an appeal against the severity of a suspension for his Golden Slipper ride and he will miss the Doncaster Mile and Sydney Cup meetings.
He will ride Australian Derby favourite It's A Dundeel on Saturday but he will be sidelined if the top colt takes on older horses at weight-for-age in the Queen Elizabeth Stakes at Randwick on April 27.
McDonald had more suspension woes during the week when he pleaded guilty to whip breaches on BMW runner-up Silent Achiever.
The latest ban means he will be out of the saddle until May 5.