The Force beat the Waratahs in Sydney last month by a single point, but that victory ended a three-match losing streak for the Force, against the Waratahs, which stretched back to 2009.
We are waiting for the kick-off.
0.00: Berrick Barnes gets proceedings under way in Perth as he kicks off for the Waratahs. The Waratahs are penalised immediately and the Force get an opportunity to attack off the back of a lineout inside Waratahs territory.
3.00: The Waratahs look to run the ball from inside their own half. They have numbers to the left and start to work through several phases as they move into the Force's 22.
5.00: The Waratahs are camped inside the Force's 22. They set up a rolling maul and the Force are penalised for collapsing this. Brendan McKibbin will have a shot at goal.
7.00: McKibbin misses the kick.
9.00: The Force look to gain momentum inside the Waratahs' half. They work through several phases after solid offloads but are unable to hold onto the ball.
10.00: The Force concede a penalty at the scrum and the Waratahs are able to clear and set up a lineout near the Force's 22.
11.00: The Force are penalised again, this time on half way for playing a man in the air. The Waratahs opt to kick for the corner.
13.00: The Waratahs earn another penalty at scrum time and McKibbin will line up another kick at posts.
14.00: The kick sails over and the Waratahs take the lead in Perth.
16.00: A strong break by Tatafu Polota-Nau sees the Waratahs move inside Force territory once again. The Force are able to affect a turnover, however, and kick for touch to get out of jail.
18.00: While the Force do well to get inside Waratahs territory, they are penalised for holding on and lose momentum. The Waratahs kick for touch and look to build phases off the back of a lineout just inside the Force's half.
21.00: David Harvey kicks a brilliant touch-finder into Waratahs territory.
23.00: The Waratahs are penalised for going off their feet. Harvey kicks for the corner.
26.00: Michael Foley makes a strong break for the Waratahs. The visitors are able to gain over 60m before Tom Kingston dots down for the first try of the match.
27.00: McKibbin nails the conversion.
28.00: The Force earn a penalty 25m out. Harvey will have a shot at goal.
30.00: The kick sails over and the Force earn their first points of the game.
34.00: The Waratahs look to apply pressure as they are camped inside the Force's 22. They work through several phases just 5m out and they believe they have crossed over but the TMO calls for a 5m scrum.
37.00: The Waratahs earn a penalty just 5m out after Salesi Ma'afu is yellow-carded for continually collapsing the scrum. The Waratahs opt to apply pressure with another try, instead of taking a kick at goal.
39.00: The Waratahs are unable to control the ball at the back of their scrum. It pops out and they concede a turnover. The Force get out of jail on the stroke of half time.
40.00: The Waratahs continue to apply pressure as they are camped on the Force's line but they knock on as the half time siren sounds.
The half time score was Force 3 Waratahs 10.
40.00: The second half gets under way as the Force kick off in Perth
42.00: Dave Dennis makes a strong break and is able to get over the line and score the Waratahs' second try.
43.00: McKibbin converts the try.
46.00: The Force look to run the ball from inside their own half. The Waratahs are penalised at the breakdown and Harvey opts to kick for the corner.
49.00: The Waratahs are penalised for offside. Harvey kicks for the corner as the home side are desperate to score their first try. They get within 2m of the try line but the Waratahs' defence stands firm.
50.00: Brett Sheehan is able to get over the line and the TMO rules that he has grounded the ball successfully.
51.00: The conversion is unsuccessful.
54.00: The Force get a put in at a scrum inside the Waratahs' half. They gain valuable metres as they run the ball wide and start to build phases. Sheehan throws a classy pass wide as the home side get within 5m of the line.
56.00: The Waratahs are penalised less than 5m out as Bernard Foley is yellow carded at the breakdown. The Force kick for the corner.
57.00: With numbers out wide, quick hands from the Western Force sees Alfie Mafi dot down for their second try of the match.
58.00: Harvey bangs over the conversion to reduce the deficit.
61.00: The Force are camped inside the Waratahs' half once again. They work through over ten phases to get within 2m of the line. They are awarded a penalty directly in front of the posts and Harvey will have a shot at goal.
63.00: Harvey's kick sails and he hands the Force the lead for the first time in this match.
64.00: The Force are penalised inside their own half. Berrick Barnes will have a kick at goal.
65.00: Barnes' kick is on target and the Waratahs regain their lead.
68.00: The Force work their way into the Waratahs' 22 again but they are penalised at the breakdown. Barnes kicks for touch to set up a lineout on his own 10m line.
69.00: The Force are penalised for taking out the opponent scrumhalf (Sarel Pretorius) at the breakdown. Barnes will have a shot at goal from 40m out.
70.00: Barnes' kick drifts wide.
72.00: The Waratahs work through twenty phases inside the Force's 22. They get within 2m and Kieran Longbottom is penalised for a high tackle. Barnes will have an attempt at goal.
74.00: Barnes' kick is successful and the Waratahs extend their lead.
76.00: The Force begin to gain momentum inside Waratahs' territory. They are awarded a penalty and Harvey kicks for the corner. We are in for an exciting finish as the Force look to capitalise from attacking lineout just 20m out.
79.00: The Waratahs get a put-in at a scrum just on their own 22m line. The Force apply pressure and they are awarded a scrum of their own.
80.00: The Waratahs put in a massive scrum and earn themselves a penalty. They punt the ball into touch to hand themselves another victory in Western Australia.
The final score is Force 18 (3) Waratahs 23 (10).
Tries - B. Sheehan, A. Mafi
Pen - D. Harvey 2
Con - D. Harvey
Cards - S. Ma'afu
Tries - T. Kingston, D. Dennis
Pen - B. McKibbin, B. Barnes 2
Con - B. McKibbin 2
Cards - B. Foley
Referee: Glen Jackson
Assistant Ref 1: Ian Smith
Assistant Ref 2: Julian Pritchard
TMO: George Ayoub
15. Bernard Foley, 14. Tom Kingston, 13. Rob Horne, 12. Tom Carter, 11. Adam Ashley-Cooper, 10. Berrick Barnes (vc), 9. Brendan McKibbin, 8. Wycliff Palu, 7. Chris Alcock, 6. Dave Dennis, 5. Kane Douglas, 4. Dean Mumm, 3. Sekope Kepu, 2. Tatafu Polota-Nau, 1. Benn Robinson (c).
Replacements: 16. John Ulugia , 17. Paddy Ryan , 18. Sitaleki Timani , 19. Lopeti Timani , 20. Jono Jenkins , 21. Sarel Pretorius, 22. Daniel Halangahu.
1. Pek Cowan, 2. Nathan Charles, 3. Salesi Ma'afu, 4. Toby Lynn, 5. Nathan Sharpe, 6. Richard Brown, 7. David Pocock (c), 8. Matt Hodgson, 9. Brett Sheehan, 10. David Harvey, 11. Cameron Shepherd, 12. Winston Stanley, 13. Nick Cummins, 14. Rory Sidey, 15. Alfie Mafi.
Reserves: 16. Elvis Taione, 17. Kieran Longbottom, 18. Phoenix Battye, 19. Ben McCalman, 20. Josh Holmes, 21. Cameron Shepherd, 22. Patrick Dellit.