Chris Waller will supply five of the seven horses to line up against Chautauqua in a special barrier trial at Rosehill where the sprinter will try to save his racing career.
After failing to jump six times in official trials, Chautauqua must leave the gates with the field otherwise he will be barred by Racing NSW stewards.
If he passes the test on Saturday, the Hawkes Racing-trained Chautauqua has to repeat the exercise in another trial to be considered fit to race.
The 1000m-trial between races at Rosehill was approved by stewards on Tuesday after they considered submissions from connections including managing owner Rupert Legh after Chautauqua performed satisfactorily in several recent jump-outs.
The world's former highest-rated sprinter, Chautauqua has not raced since his fourth in the Darley Classic in November.
Chautauqua's Waller-trained opponents on Saturday are Lean Mean Machine, Sambro, The Autumn Sun, Youngstar and Zousain with the field completed by the Ron Quinton-trained Dixie Blossoms and Godolphin's Tally.
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