Most Americans have never heard of the Australian Open before you made a big deal out of detaining a tennis player so it's a bit of a stretch to say that we have an idea that it's "really really important to Australia". We'd have to have heard of it to think that.
You detained a touring tennis player who has recovered from Covid and thus has better immunity than anyone with the shots, a guy that you'd previously given a visa to enter. Great Job!! That's quite a strong blow for border security, I'm sure the Chinese took one look at that and have decided to scratch you off their invasion list. That's about as much of a win for border security as our strip searching 90 year old Jewish grandmothers in wheel chairs after 9/11.
To put it bluntly, this makes your country look like a bunch cowering ninnies.
You detained a touring tennis player who has recovered from Covid and thus has better immunity than anyone with the shots, a guy that you'd previously given a visa to enter.
No, actually that is not what has happened. Djokovic never had a valid visa to enter Australia and the lie that he did that people here keep repeating because they've been fed that lie is part of the reason why this is a border security issue for Australia. Misinformation and lies about Australia's border policies make it so.