Just hours after Tennis Australia said it wouldn't be involved in the approval of any medical exemptions for Australian Open players - including Djokovic - Andrews on Thursday seemed to throw the ball back in TA's court.

"I'm briefed that TA are looking very closely at whether they might put in place a review mechanism with a panel of medical experts to review any exemptions that were granted and I fully support that," Andrews told reporters.

"If TA go down the review process to check that all of the exemptions were appropriate, then I think that would be a very good step for them to take."

However, it remains very much unclear who exactly will be responsible for granting - or denying - any medical exemptions amid reports Djokovic is seeking one after repeatedly refusing to reveal his vaccination status.

Government officials have maintained for months that only fully vaccinated players, their entourages, staff and fans will be allowed into Melbourne Park for the season's first grand slam from January 17-30.

TA had thought it was the government's duty to consider any medical exemptions until Andrews' latest remarks muddied the waters further.

TA chief and Open boss Craig Tiley earlier on Thursday said applications for an exemption from the vaccination mandate would be reviewed by an independent medical panel.

He said the requests were received anonymously, meaning an application by nine-time champion Djokovic wouldn't be treated differently to any other.

"There's an independent panel of medical specialists and they see a blind copy of the medical exemption request," Tiley told ABC News on Thursday.

"And it's very specific as to what is eligible or not, and then that goes through that expert panel and they will make a call.

"At this point, it's in the process of being established so no medical exemptions that have been granted at this point."

Tiley said there were clear ATAGI (Australian Technical Advisory Group on Immunisation) guidelines for an exemption that he considered "different hurdles to cross".

He said he wasn't privy to any medical condition that Djokovic may have that would meet the criteria.

"There's no loophole ... international tennis players have exactly the same conditions as everyone coming into Victoria or coming to Australia," Tiley said.

"There's no benefit provided to any one of them on any condition and in any circumstance and that's been made clear to them from the beginning.

"We now are in a position where over six weeks ago only 50 per cent of the tennis playing group globally were vaccinated and now it's more than 95 per cent."

Tiley also explained that the Australian Open entry list released on Wednesday wasn't final.

"What was published is a general entry list and, as a matter of course, everyone goes on the entry list," he said.

"It's not a commitment list of about who's exactly in the draw, that comes in several weeks' time."

Australian Associated Press