Brett Lee spills the beans on top secret room at the SCG where Test cricket players have been quietly enjoying a drink since the Don Bradman era

Australian pace bowling weapon Brett Lee has revealed one of the greatest secrets in Test cricket, a secret chamber at the SCG where only legends of the game are allowed to tread.

Lee, 47, debuted for the Australian Test side against India at the MCG in 1999, going on to take 310 Test wickets across 76 matches.

While Lee travelled the world, one of the most eye-opening experiences was at the SCG where he was brought into the inner sanctum of Australian cricket.

Speaking on the Hello Sport podcast, Lee revealed the top-secret cellar at the Sydney venue that has been a safe haven for Test players since Bradman brandished the Willow over 70 years ago.

'At the Sydney Cricket Ground, a lot of people don't know — (I'm) giving away a little bit of inside knowledge here,' Lee told the podcast hosts.

'That inner sanctum where we feel comfortable, where there's no press, where we can relax and just speak honestly and openly.'

The secret cellar even had a secret knock to gain access. 

'After the Test win at the SCG, the tradition is you'll get a cricket bat and go thump thump thump on the floor, three taps.

'Then a few minutes later you'll hear thump thump thump, someone from downstairs in the cellar, which means come downstairs to the cellar.

'So you walk down underneath the change rooms of the Australian players, opposite near where the race is and there's a little garage door.

'You walk inside and it's (tiny) so we reckon it's Justin Langer's house because he fits in beautifully. And there's a door that's been signed by every Test cricketer I think since the 1950s that's in there.

'And it's a cellar. So beers and wine, you get down there and have a chat with some of the ground staff and have a cold beer with them.' 

Lee spoke about his pride in being inducted into the time-honoured tradition in the cellar during his early years in the sport. 

'I thought, 'How good's this Test cricket stuff' and tradition knowing that the likes of Bradman have done it, the Allan Borders, the Merv Hughes, legends of the game,' he said.

'I probably shouldn't be saying too much about this. (The three taps signalled) we are thirsty!

'That was a pinch myself moment. I'm looking around and I've got Steve and Mark Waugh, Ricky Ponting, Damien Martyn, Justin Langer, Adam Gilchrist, Shane Warne, Glenn McGrath.

'And here I am in the secret cellar with my heroes I watched growing up and are now teammates.'