Co-trainer Robbie Griffiths is hoping he can honour the death of his late brother Rodney by claiming victory with Halvorsen in The Goodwood at Morphettville.
Multiple Group 1-winning jockey Rodney Griffiths died earlier this month after a battle with cancer, aged 54.
"It's always hard to lose someone you're so close to, I still find myself sometimes forgetting he's gone and calling his mobile number," Robbie Griffiths, who trains in partnership with Mathew de Kock, told Racing.com.
"It would be a fairytale if we were to win, I know Rodney will be with us. You can never underestimate divine intervention, it worked for Ollie in the Melbourne Cup after his brother Jason's passing, that was so special."
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Six-year-old Halvorsen won the Standish Handicap in January and finished second in the William Reid Stakes in March, but more recently ran tenth in the $500,000 Country Discovery on Good Friday.
However, Griffiths said the gelding didn't have conditions to suit at Sale.
He added: "Andrew Mallyon rode him last start as well and was full of merit for the run as he was of course for his performance in the William Reid, so we're really hoping our guy has one more big run in him this prep.
"On Saturday, he gets a weight turnaround, a good barrier, a dry track and he's back out to 1200 metres so we're hoping he's in with a good chance."
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