Overnight frost prevented officials from watering the course, leaving sections of the ground firmer than expected.
More than 20 horses have been withdrawn from Saturday's racing at Cheltenham following concerns over the condition of the track.
Overnight frost prevented officials from watering the course, leaving sections of the ground firmer than expected.
Among the withdrawals are Old Park Star and Kabral Du Mathan, with trainers unwilling to risk their horses on the surface.
Cheltenham officials say they had taken steps to prepare the track, but freezing temperatures and limited rainfall have made conditions difficult ahead of the day's racing.

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