The Jets lost their first four games before notching a breakthrough 2-1 win over Wellington Phoenix last week.
Western Sydney and Newcastle have already met once this season, with the Wanderers winning 2-1 on January 8.
The rematch will be held at Western Sydney's home ground Bankwest Stadium.
Deans said the rivalry between Newcastle and Western Sydney isn't new and won't take away from his team's sole focus of winning.
"The first season they got up and running they had a few of our ex-players and our CEO and a few other people involved," Deans said.
"Every A-League club you get the same situation. For me it's not an issue anymore, what's done is done. It's just about us winning the game on Friday."