A debut winner in the Listed McKenzie Stakes (1200m) at Moonee Valley on September 6, Rosberg is set to run in the Group 2 Danehill Stakes (1100m) at Flemington on October 4.
Trainer Clinton McDonald has then earmarked the Group 1 Coolmore Stud Stakes (1200m) at Flemington on November 1.
In recent years jump-outs have been held at Flemington before the first two-year-old race of the season with a three-year-old jump-out arranged for later in October to give horses aimed at the Coolmore a look at the track.
But, after consultation with trainers, including those based at Flemington, the Victoria Racing Club decided to bring forward the Coolmore jump-out to coincide with the two-year-old jump-outs on Thursday.
VRC Executive General Manager – Racing, Leigh Jordon, said the trial for three-year-olds was open to horses targeting the Coolmore.
"There was feedback, not just from outside trainers, but from internal trainers as well, who felt the trial would be better this week," Jordon said.
McDonald said it was important not only for Rosberg, but also punters, for the colt to get a look at the Flemington straight.
"It will be good for the horse and the punters to see him down the straight before he goes there," McDonald said.
"It's important, not just for him, but every horse. It's big prize money on offer and there is a lot of money invested on the punt."