Australia vs British & Irish Lions - Test series LIVE: Andy Farrell's men are without Garry Ringrose for second test - as the Wallabies make several big changes

So, the big news today is that Australia are set to have several big stars returning to action.

Joe Schmidt has made three changes to his squad following last week’s defeat, with flanker Rob Valetini coming in at blindside flanker in place of Nick Champion de Crespigny.

Meanwhile, David Porecki, who was unavailable for the opening game of the Test series due to a concussion injury, returns to play hooker in place of Matt Faessler.

The big news, though, is that towering second-row star Will Skelton has recovered from a calf injury and will start at No 5 for today’s match.

The 33-year-old second row stands at 6ft 8in and weighs around 23st. And the La Rochelle forward’s physicality combined with his brilliance at the break down will make him a huge threat to the Lions on Saturday evening.

‘He is a fantastic player and a talisman for any side he plays in. He adds a sense of dynamism, size and power to the team,’ Lions skipper Maro Itoje said, speaking on the Aussie lock-forward.

‘Due to the size of him and his strengths, Will presents different challenges to your traditional lock.’

Mail Sport’s Chris Foy has been doing the analysis and here’s why the tourists should be terrified of the giant second-row.

What would a win mean today for Joe Schmidt and his side?

'I would never be outcome-focused,' the Australia coach said.

'But this would be special and it would be special for this group. I think it would accelerate a little bit of their growth as well in terms of gaining confidence.'

Here's the full Wallabies squad to take on the Lions at the MCG...

Here at the Melbourne Cricket Ground, the Lions have won the toss and will bat first. Only joking – the Lions will kick off.

Finn Russell first out on the pitch to start practising his shots at goal while seagulls swirl around the upper reaches of this vast stadium.

The Lions got a chance to get to grips with this iconic cricket stadium during their captain’s run on Friday afternoon and they took the opportunity to have a quick knock in the centre of the oval!

It comes as Ben Stokes’ England side will arrive here in a little less than five months’ time ahead of the upcoming Ashes Series.

It also looks like Finlay Bealham ever wanted to give up playing rugby union, he could have a career in cricket with the Irish front-row star seen smashing some big shots around the ‘G!

There is an electric atmosphere in Melbourne tonight as the British and Irish Lions and the Wallabies are set to clash at the Melbourne Cricket Club.

Andy Farrell’s side took a 1-0 lead in the series following their 27-19 victory against the hosts at the Suncorp Stadium Last week.

The Lions were dominant in the opening 20 minutes of the match, and perhaps that is where the game was won. Scotland star Sione Tuipulotu and English flanker Tom Curry both crossed over in the first half, while Max Jorgensen pulled a score back for the Wallabies.

Despite the statement win in the opening game of the series, there was plenty for the Lions to work on coming into this second Test, with the Wallabies set to welcome back several big hitters for this match.

And Australia boss Joe Schmidt believes his side are taking plenty of confidence from last week’s defeat into tonight’s match.

‘The squad has recovered well after a very physical first Test and the week's preparation here in Melbourne has allowed us a bit more time together,’ Schmidt said.

‘We took some confidence from the second half last week, but we know we’ll need to improve further against a Lions team that will bring plenty of fire to the contest on Saturday night.’

Kick-off is less than an hour away, so stay with us as we’ll be bringing you all the latest news, commentary and analysis from the second Test.