England vs Australia
The big talking point is that Jonny Wilkinson is back from injury and playing for England again - let's hope he can stay injury-free and enjoy an extended run for England, a team which has lacked continuity ever since winning the World Cup back in 2003. There's a lot of talent in the team, but injuries have disrupted preparations and forced Martin Johnson to pick several inexperienced players in the starting lineup.
Australia have also had their fair share of injury problems, particularly in the midfield, but will be desperate to end their season on a high by completing the grand slam. At the moment, their chances of success seem slim, but you write off the Australians at your peril. This week's performance against England will set the tone for the rest of their tour.
England:
15 Ugo Monye
14 Mark Cueto
13 Dan Hipkiss
12 Shane Geraghty
11 Matt Banahan
10 Jonny Wilkinson
9 Danny Care
8 Jordan Crane
7 Lewis Moody
6 Tom Croft
5 Steve Borthwick (captain)
4 Louis Deacon
3 David Wilson
2 Steve Thompson
1 Tim Payne
Replacements: 16 Dylan Hartley, 17 Duncan Bell, 18 Courtney Lawes, 19 James Haskell, 20 Paul Hodgson, 21 Andy Goode, 22 Ayoola Erinle
Australia
15 Adam Ashley-Cooper
14 Peter Hynes
13 Digby Ioane
12 Quade Cooper
11 Drew Mitchell
10 Matt Giteau
9 Will Genia
8 Wycliff Palu
7 George Smith
6 Rocky Elsom (captain)
5 Mark Chisholm
4 James Horwill
3 Ben Alexander
2 Stephen Moore
1 Benn Robinson
Replacements: 16 Tatafu Polota Nau, 17 Matt Dunning, 18 Dean Mumm, 19 David Pocock, 20 Luke Burgess, 21 Ryan Cross, 22 James O'Connor.
Kickoff is at 14:30 GMT.
Wales vs New Zealand
Wales will be hoping to regain the form of 2008 that saw them win the Six Nations grand slam - and break their long drought against the All Blacks. They have the team to do it, but do they have the self-belief? New Zealand are not currently the dominant force they have been for so long - but even a "weak" All Black team is good enough to beat most other teams! Graham Henry will be hoping that Dan Carter's calf problem does not prevent him from playing a full part in the series.
Wales:
15 James Hook
14 Leigh Halfpenny
13 Tom Shanklin
12 Jamie Roberts
11 Shane Williams
10 Stephen Jones
9 Gareth Cooper
8 Ryan Jones (c)
7 Martyn Williams
6 Andy Powell
5 Luke Charteris
4 Alun-Wyn Jones
3 Paul James
2 Matthew Rees
1 Gethin Jenkins
Replacements: 16 Huw Bennett, 17 Duncan Jones, 18 Bradley Davies, 19 Dafydd Jones, 20 Martin Roberts, 21 Jonathan Davies, 22 Tom James
New Zealand:
15 Mils Muliaina
14 Cory Jane
13 Conrad Smith
12 Ma'a Nonu
11 Zac Guildford
10 Dan Carter
9 Brendon Leonard
8 Kieran Read
7 Richie McCaw (captain)
6 Jerome Kaino
5 Jason Eaton
4 Brad Thorn
3 Neemia Tialata
2 Andrew Hore
1 Wyatt Crockett
Replacements: 16 Corey Flynn, 17 Owen Franks, 18 Tom Donnelly, 19 Adam Thomson, 20 Jimmy Cowan, 21 Stephen Donald, 22 Ben Smith.
Kickoff is at 17:30 GMT.