Tennis players ... any circumstances cross is the one where the court ends and the seats begin. Lest we forget, this year’s Australian Open has reminded us of those unwritten rules.

Nike might have swept the podium with champions Jannik Sinner and Madison Keys, but it wasn’t just the big names that made waves in Melbourne.

Advertisement The Australian Open also doesn’t treat tennis like a fragile museum piece ... rather than in a box above the court and in the stands, where they had to lean over to chat with ...