Arnold’s appeal was dismissed by the AFL Vic Country appeals board during the week and the suspension of six matches will remain.
The Mansfield forward was reported for engaging in rough conduct during Mansfield’s win over Seymour on April 16.
The Eagles’ off-season recruit was originally found guilty by the tribunal, however Mansfield appealed the decision.
Elsewhere, Rochester will be without Andy Henderson for this weekend’s clash against Shepparton Swans.
Henderson was reported by the Match Review Panel for carelessly striking another player.
The Tiger accepted a set penalty of one week.
Benalla’s Dan Cooke was reported by the MRP for intentionally striking another player.
Cooke was offered a set penalty of two weeks which was appealed at the tribunal.
The tribunal found Cooke not guilty.
Meanwhile, an under-18s footballer from Echuca has accepted a one-week penalty.
The junior player was reported for making unreasonable or unnecessary contact to the face of another player.
In the Kyabram District League, Dookie United will be without Thomas Cook for Saturday’s round six clash against Nagambie.
Cook was reported for carelessly striking another player and accepted a set penalty of one week.
Murchison-Toolamba’s George Brisbane was reported for intentionally striking another person.
Brisbane accepted a set penalty of two weeks.
Rushworth’s Jack Baker accepted a one-week suspension after he was reported for carelessly striking another player.
Lastly, an under-18s footballer from Stanhope was reported for carelessly striking another player.
The matter has been referred to the tribunal and will be heard at a later date.