Arnold's men, currently third on the A-League table, take on an out-of-sorts Victory line-up at AAMI Park in their Week 14 midweek fixture and the Mariners boss expecting plenty from Ernie Merrick's charges who have dropped their past two matches.
"We'll be expecting them to throw everything at us, as Victory always do, but the worst result for us was seeing what happened to them over in Perth. Losing 3-1 won't have gone down well at all with the players or the fans,'' Arnold said.
''So we have to be prepared for that but on the same token we won't be changing our game too much.
"We'll look to keep doing the same things we've done all year.''
The Mariners meet the sixth-placed Victory tonight - kick-off is at 7:30pm.