Wales star Jac Morgan has been named on the bench as the British & Irish look to seal a first series win for 12 years against Australia in Melbourne today.
The Lions drew first blood with a 27-19 victory in the First Test last Saturday but the Wallabies have been boosted by the return from injury of key forwards Will Skelton and Rob Valetini. Andy Farrell has made three changes to his starting XV with Bundee Aki replacing the injured Sione Tuipulotu at centre while Andrew Porter starts ahead of Ellis Genge in the front-row and Ollie Chessum takes the place of Joe McCarthy at lock.
The same back three of Hugo Keenan, James Lowe and Tommy Freeman has been retained, with Huw Jones partnering Aki in midfield. Finn Russell and Jamison Gibson-Park are the half-backs.
Up-front Dan Sheehan and Tadhg Furlong join Porter in the front-row with captain Maro Itoje partnering Chessum at lock.
Tadhg Beirne, Tom Curry and Jack Conan form a powerful backrow.
Farrell has made four changes to the replacement bench with Morgan, Irish second-row James Ryan, Owen Farrell and Blair Kinghorn included.
Today's match at the Melbourne Cricket Ground is expected to draw a crowd in the region of 90,000 which would be a new record for a Lions Test match. Follow live updates below.
Kick-off is at 11pm on Sky Sports.
Australia: Wright; Jorgensen, Suaalii, Ikitau, Potter; Lynagh, Gordon; Slipper, Porecki, Alaalatoa, Frost, Skelton, Valetini, McReight, Wilson (capt).
Replacements: Pollard, Bell, Robertson, Williams, Gleeson, Tizzano, McDermott, Donaldson.
British and Irish Lions: Keenan; Freeman, Jones, Aki, Lowe; Russell, Gibson-Park; Porter, Sheehan, Furlong, Itoje (capt), Chessum, Beirne, Curry, Conan.
Replacements: Kelleher, Genge, Stuart, Ryan, Morgan, Mitchell, Farrell, Kinghorn.
Referee: Andrea Piardi (Ita)
Assistant Referee 1: Nika Amashukeli (Geo)
Assistant Referee 2: Ben O'Keeffe (NZ)
TMO: Eric Gauzins (Fra)
Foul play review officer (FPRO): Marius Jonker (SA)
Key Events
Full-time: Australia 26-29 Lions
The Lions have won the series!
This is their first series win since 2013 with a late Hugo Keenan try snatching victory from the jaws of defeat.
Tries from Dan Sheehan, Tom Curry, Huw Jones, Tadhg Beirne and Keenan has done it for the Lions.
Try Lions! Australia 26-29 Lions
The Lions have done it!
The try has been awarded after Australia complained about Jac Morgan's clearout.
Have the Lions scored? Over to the TMO
The Lions have done it!
What a comeback for the tourist as Hugo Keenan scores at the corner after a breathtaking period of play with Finn Russell at the heart of it.
But it goes to the TMO!
Time is running out for the Lions!
The Lions just can't finish this Test match off!
Yet again they look as if they are about to break the Wallabies but they spill the ball forward.
Australia 26-24 Lions
This game is there to be won!
It's a great break by Blair Kinghorn to give the Lions momentum in the Wallabies 22.
It looks like the Lions are poised to score but Will Stuart is penalised for an extra roll on the ground.
Australia 26-24 Lions
So close!
Maro Itoje wins a penalty at the breakdown which allows Finn Russell to go to the corner.
The Lions lay siege to the Australia line but the hosts win a key penalty on their own line.
Australia 26-24 Lions
More changes
Owen Farrell and Blair Kinghorn enter the fray.
James Lowe and Huw Jones are off
Try Lions! Australia 26-24 Lions
Bundee Aki bursts through the Wallabies defence to wrestle momentum back in the Lions' favour.
The Lions go through the phases before a nice offload from James Lowe puts Tadhg Beirne over for a try at the corner.
Finn Russell adds the extras.
Jac Morgan enters the fray!
Jac Morgan is finally on the field as he replaces Tom Curry.
Ellis Genge is also on as is James Ryan
Tom Curry saves the Lions!
Wallabies go wide and the try is on but a terrific read and tackle by Tom Curry on Joseph Suaalii saves the tourists.
Australia 26-17
Penalty Australia! Australia 26-17 Lions
Tom Lynagh makes it a two-score game again from the kicking tee.
Wallabies on the attack
The Wallabies are on the attack in the Lions 22.
They are making big post contact metres and are making headway out wide.
The Lions will have to dig deep here.
Australia 23-17 Lions
Skelton leaves the field
Will Skelton is replaced by Jeremy Williams.
He's been outstanding today so that's a blow for the Wallabies.
Australia 23-17 Lions
Wallabies make key changes
Rob Valetini is replaced by Langi Gleeson. The Lions will be relieved to see the back of him!
There's also new props with Angus Bell and Tom Robertson on.
Australia 23-17 Lions
Second-half kick-off
Tom Lynagh gets the second-half underway
Australia 23-17 Lions
Half-time: Australia 23-17 Lions
What a half of rugby that was!
The Wallabies look an entirely different side to last week with Will Skelton and Rob Valetini making a huge difference.
Tries from James Slipper, Jake Gordon and Tom Wright give the Wallabies a half-time lead.
Dan Sheehan and Tom Curry cross for the Lions
Try Lions! Australia 23-17 Lions
This game has turned on its head!
It's a tremendous touchfinder by Finn Russell from a penalty.
There's some slick handling by Gibson-Park and Hugo Keenan to put Huw Jones over for a try.
Finn Russell adds the extras.
Try Lions! Australia 23-10 Lions
The Lions hit back!
It's a powerful carry from Tommy Freeman into the Wallabies 22.
Gibson-Park goes to the blindside with Jack Conan finding Tom Curry out wide who finishes brilliantly at the corner.
Try Australia! Australia 23-5 Lions
The Wallabies are on fire and the Lions looked stunned!
Australia receive the restart and go wide with some brilliant footwork from Joseph Suaalii to slice through the Lions defence before putting Tom Wright over for the try.
Stunning rugby by the Wallabies.
Try Australia! Australia 18-5 Lions
The Wallabies forwards build pressure in the Lions 22 and are getting over the gainline.
They suck Lions defenders into the ruck and scrum-half Jake Gordon goes straight through a gap to score.
Tom Lynagh adds the extras.
Tremendous 50/22!
It's a terrific 50/22 by Tom Wright.
Wallabies have another opportunity in the Lions 22.
Australia 11-5 Lions
Try Australia! Australia 11-5 Lions
The Lions initially do well to stop Australia's maul from crossing the line.
But the Wallabies keep on coming and after a few carries James Slipper borrows over the line to score.
It gets worse for the Lions as Tommy Freeman is sent to the sin bin.
Lions discipline is poor
The Lions have conceded five penalties so far at the breakdown.
They are now on a final warning.
Discipline needs to improve.
Australia 6-5 Lions
Wallabies blow
Australia wing Harry Potter leaves the field with an injury and is replaced by scrum-half Tate McDermott.
Wallabies went for a 6-2 split on the bench hence why McDermott is on the wing.
Australia 6-5 Lions
Try Lions! Australia 6-5 Lions
The Lions lay siege to the Wallabies line but are initially stopped by the hosts.
They tap and go from a penalty and Dan Sheehan jumps over the top of the Wallabies defence to score.
Australia are livid because they feel Sheehan jumped over the top of the Wallabies defence.
Andrea Piardi said you are allowed to jump in the act of scoring.
Disallowed try!
The Lions go to the corner and Bundee Aki charges over the gainline with ease.
He is brought down just short of the line before Jack Conan smashes his way over the line.
But the try is disallowed for a knock on.
Australia 6-0 Lions
Lions destroy Wallabies scrum
The Lions shove the Australia scrum backwards at a rate of knots to earn a penalty.
There's a bit of off the ball stuff with Will Skelton in the middle of it.
Australia 6-0 Lions
Penalty Australia! Australia 6-0 Lions
The Wallabies are winning the collisions and are a lot more physical than they were last week.
They win another penalty which Tom Lynagh knocks over.
The Lions need to wake up!
Penalty Australia! Australia 3-0 Lions
Tom Lynagh kicks the Wallabies into an early lead
Strong start by the hosts
Australia have started a lot faster than last week.
The Wallabies are carrying well and find an edge out wide with the Lions forced to concede a penalty.
Will Skelton has carried the ball three times in the first three minutes.
Australia 0-0 Lions
