The dynamic midfielder has departed the Roos to test the waters in the Geelong Football League.

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Miller has signed on with powerhouse club St Joseph's, who has reached finals the past six seasons and won a flag in 2017.

Miller returned to Dimboola in 2019, playing 12 games in a season delayed by a broken finger he sustained in the Roos' opening round win.

Still in early 20s, Miller has previously expressed his desire to challenge himself at a higher level again.

Miller spent 2018 with West Adelaide in the SANFL, but several serious back injuries sidelined him for half a season.

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The Roo's departure is somewhat softened by a host of big-name arrivals for the new season.

Dimboola has picked up a VFL premiership-winning midfielder, in Mitchell O'Donnell, as well as Ballarat Football League star Jack Landt and goalkicking force Dylan Tarczon for it's 2021 finals charge.

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