Following Saturday's meeting between the two clubs, which ended 2-2, Arnold said his squad was on a different path to the reigning A-League champions who are preparing for a week-long tournament with English Premier League club Blackburn Rovers, Scottish giants Glasgow Rangers and Greece's AEK Athens.
"To be honest, that would not suit us at this stage," Arnold said yesterday. "We are in a different situation to Sydney. They are far more stable in terms of their squad.
"I know they have lost a few older players, but they have huge depth and have brought in some quality players in Nick Carle and Scott Jamieson. We don't have that luxury and are probably better off doing more work on the training paddock.
"I'm happy with our pre-season anyway. We will have had nine or 10 matches by the time the season kicks off (August 5)."
Of the clash with Sydney, Arnold felt his side performed solidly whilst not being at full strength.
"I felt we created more chances than them and our defence, which we have been working on pretty hard, was solid," Arnold added.
"We were only at about 60 per cent in terms of team strength and I guess the same can be said of Sydney."