A luckless last-start Murray Bridge placegetter, Street Tough was also among Morphettville acceptors, but a perfect gate and light weight was enough to lure the horse interstate.
"He's heading to Mildura,'' Will Clarken's Racing Manager Lachie Weekley said.
"Drawn a nice gate, he should get the right run.
"The favourite (Sierra Sue) you would imagine will be behind us in the run, Street Tough is rock hard fit and should be right in the race you'd think,'' he said.
Street Tough boasts an impressive record winning seven of 24 starts in the Apple Isle which included nine placings before coming to Adelaide.
He raced on speed to be narrowly beaten by Too Good Too Hard first-up for Clarken before finishing a half-length in third spot behind Pindaric last time out in a race he clearly should have won with an ounce of luck.
Weekley said the horse had trained on well since.
"He had no luck last start, he's a very consistent and honest horse who is always there for you,'' Weekley said.
"He shouldn't be too far away,'' he said.
South Australia will also have representation in the Mildura Cup from John Macmillan's Arkham Knight who has been racing well in Victoria, while the Stokes take have More Than Exceed second-up from a spell.
The Clarken stable has another busy day at Morphettville on Saturday and Weekley said lightly-raced three-year-old filly Naleigh had come on well following a nice first-up run at Gawler when she pulled very good late ground off run away leader and winner Mutinous.
"Naleigh was a good and that looks a pretty even sort of race,'' Weekley said.
"It looks an even day on paper across the card,'' he said.
And he said it would be interesting to see just how the Morphettville track finishes up with Adelaide set to get plenty of rain over the next 48 hours.
"It (track) is certainly copping a bit this morning, it's got to be headed towards the heavy range,'' Weekley said.
"Tomorrow will be the teller,'' he added.