The current Yokohama F. Marinos coach is being tipped as the man to take over at the Scottish giants.
"Those who know me know my focus is on what's in front of me," Postecoglou said, per Sky Sports.
"I've understood there's some speculation around the future, but I've stopped thinking about the what-ifs in the world a long time ago.
"My focus the last couple of days has been on making sure we play well."
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