Former tennis player Boris Becker is the latest big-name figure to have his say on the developing Novak Djokovic situation.
World No.1 Djokovic, who has managed to keep his vaccination status under wraps, is currently being held in Melbourne's Park Hotel as he faces the nervous wait to see whether he'll be let into the country.
The Serbian's hopes of successfully defending his Australian Open title took a major blow when his visa was declined by border security, despite having controversially been granted an exemption to enter the country.
As you can probably imagine, fans and sports stars alike have been quick to chime in on the matter, some choosing to slam Djokovic AKA "Novax" while others have thrown their support behind him.
Either way, people are now divided - although Becker appears to have made his stance on the issue crystal clear.
Speaking to Bild, six-time Grand Slam winner Becker said: "If he is sent back, Novak will have to rethink a few things.
"If he wants to continue his career, I strongly advise him to have a vaccination.
"Does he want this discussion before every tournament? In any case, he cannot go on like this."
It's blunt advice from one of tennis' greats, but don't expect Djokovic to take it onboard.
Even with his career potentially on the line, the Serbian star doesn't seem to be budging on his vaccine beliefs.
A number of current and former players have spoken out against Djokovic, although there's now a growing group of people who appear to take issue with his detention in Melbourne.
"I think everyone is shocked by it, to be honest," Andy Murray recently told reporters in Australia.
"I'm going to say two things on it just now. The first thing is that I hope that Novak is OK. I know him well, and I've always had a good relationship with him and I hope that he's OK.
"The second thing, it's really not good for tennis at all, and I don't think it's good for anyone involved. I think it's really bad."
Look I definitely believe in taking action, I got vaccinated because of others and for my mums health, but how we are handling Novak's situation is bad, really bad. Like these memes, headlines, this is one of our great champions but at the end of the day, he is human. Do better.- Nicholas Kyrgios (@NickKyrgios) January 7, 2022
Aussie fan favourite Nick Kyrgios, who has never shied away from criticising Djokovic in the past, shared Murray's views.
He tweeted: "Look I definitely believe in taking action, I got vaccinated because of others and for my mum's health, but how we are handling Novak's situation is bad, really bad.
"Like these memes, headlines, this is one of our great champions but at the end of the day, he is human. Do better."