"Our situation is a bit different from Newcastle's," said Postecoglou. "They've had a European season, Champions League, it's been a big season. We haven't. It's no secret part of this exposure but also revenue for us.
"I certainly wouldn't have allowed it to happen if we were in Europe this year and had a bigger game schedule. I probably would have said no to it.
"And I don't think the club would have expected us to go. If we're in Europe next year, I don't think you'll be seeing this happen.
"I don't think it's ideal. But I think each situation is unique. For us, on the back of our season, to play one more game two days after the end of the season, there is substance to it for us.
"We had a discussion with the playing group really early on about it. They understood why we're doing it and we all made a commitment to go and that's going to happen."