Postecoglou said: "We understand the importance of the game and we understand the importance, particularly at home, in these kind of games against our biggest rival and in the biggest derby, for us not letting our opponent get on top of us.
"So, we understand the consequences of that but, ultimately, it's still about us measuring ourselves against the teams we want to be challenging on a more consistent basis. It's a great opportunity to do that on Sunday."
"Every time you're out there is a chance to measure yourself," added Ange. "I have a fair idea of where we're at, and what progress we've made, and what progress we need to make.
"It's another great challenge for us... three big games and then we finish the season with three games (Burnley, City, Sheffield United). They are all games of consequence, for us and for the opposition.
"The players are looking forward to that as well. This time of the year, you want to be playing for something, and certainly the games we're involved in will have something in them, so we're looking forward to it."