A win for the north London outfit will take them top for at least 24 hours as Manchester City and Arsenal don't meet until Sunday.
Postecoglou has enjoyed huge success in his opening weeks at the helm, with Spurs still unbeaten in the Premier League.
He recently discussed his fandom for Liverpool as a youngster and used the analogy that he also used to watch the American sitcom 'Happy Days' and had posters of The Fonz on the wall.
One reporter decided to play the theme tune on Friday as he spoke to the press, but Postecoglou was not one to sing along.
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"Oh my god, oh wow," he said in response, before adding: "Firstly can I say, what a gentleman Henry Winkler is. He sent me a message and I was truly chuffed by that.
"I said during the week, sometimes you get disappointed when you meet your heroes but what a great gentleman. If he does send me a poster signed, I'll definitely put it on my wall despite the protestations of my wife."
When reverting back to the reporter's question of potentially going top of the table, he said: "Look, if we win we go top of the table for what, 24 hours, but who cares?
"We've got to win, it's a tough game tomorrow and our focus is going to be on putting on a performance and playing at our best.
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"If we don't, then it won't matter where we're sitting on the competition ladder. It'll be us focussing on a poor performance."
Postecoglou was also on hand to deliver positive news over the fitness of star summer signing James Maddison.
The 26-year-old was dealing with a small injury ahead of their 2-1 win over Liverpool but the Spurs boss said: "No cotton wool here, just barbed wire mate. Maddison is fine, he's trained in every session this week."