Gloucester visit West Country rivals Exeter for the second of three meetings in four weeks between the sides on Saturday.
Here is everything you need to know ahead of the Heineken Champions Cup Pool 2 fixture:
What time is kick-off and is it on TV?
The game is a 1pm kick-off and fans watching from home will have a choice of channel.
It is being shown on BT Sport 2 but will also be available on free-to-air TV on Channel 4.
Viewers in Ireland will also be able to watch the game for free on Virgin Media and the Champions Cup will be screened all over the world.
All 10 tournament matches this weekend will be broadcast live on NBC Sports in the United States and on DAZN, in Austria, Canada, Germany, Italy, Japan and Switzerland.
Full live coverage will also be accessible across the Caribbean on SportsMax and to fans in Australia and South-East Asia on RugbyPass. In addition, New Zealand audiences will have matches from Edinburgh and the repeat of the 2004 final between Wasps and Toulouse this weekend on TVNZ Duke.
Remember, you can also follow the game as always on our live blog here.
As it stands
This double header could be decisive for both teams.
Pool 2 is the tightest group with just four points separating the teams.
Munster currently top the group with seven points, while Castres are on five with Gloucester on four and Exeter on three.
Exeter need no introduction – there’s nothing Gloucester won’t know about them by the time they’ve finished this freakish sequence of games against each other.
Their director of rugby Rob Baxter has built a highly successful side since taking the coaching reins nine years ago and is seen by many as a future England boss.
However, he has said this week he does not want to succeed Eddie Jones, telling the Will Greenwood podcast: “I would say it would be unlikely if I’m honest with you. I don’t want to do it yet.”
Baxter led Exeter to the Premiership title in the 2016/17 season but they have not yet been able to transfer their domestic success to Europe.
They have only once reached the knockout stages – in the 2015/16 season when they lost by a point to Wasps in the quarter-final.
Their squad boasts a growing number of England internationals with Alec Hepburn, Ben Moon, Jack Nowell, Henry Slade and Harry Williams all featuring during the autumn internationals.
Winger Alex Cuthbert was born in Gloucester and joined Exeter from Cardiff Blues in the summer, scoring in the last meeting between the sides two weeks ago.
Gloucester have won four of their last six games in all competitions, beating Worcester 36-16 at Kingsholm in their last game.
Exeter suffered their first Premiership defeat of the season when they were beaten by Harlequins last week but they did not win any of their first two European games – drawing at home to Munster and losing in Castres.
They had won four successive games in all competitions before that.
Exeter ran out 23-6 winners when the sides met in the Premiership so recently with Cuthbert and Nic White scoring the tries.
Gloucester’s last win at Sandy Park was the 26-25 victory in January 2015.
The sides have not met in the Champions Cup before but Gloucester came out on top in their only previous European meeting – the 2015 Challenge Cup semi-final at Kingsholm.
15. Phil Dollman;14. Santiago Cordero, 13. Henry Slade, 12. Ollie Devoto, 11. Alex Cuthbert, 10. Gareth Steenson, 9. Nic White; 1. Ben Moon, 2. Jack Yeandle (c), 3. Greg Holmes, 4. Mitch Lees, 5. Dave Dennis, 6. Sam Skinner, 7. Don Armand, 8. Matt Kvesic.
Replacements: 16. Elvis Taione, 17. Alec Hepburn, 18. Tom Francis, 19. Ollie Atkins, 20. Tom Lawday, 21. Stu Townsend, 22. Joe Simmonds, 23. Ian Whitten.
Gloucester: 15. Tom Hudson; 14. Matt Banahan, 13. Henry Trinder, 12. Owen Williams, 11. Ollie Thorley; 10. Danny Cipriani, 9. Willi Heinz (capt); 1. Josh Hohneck, 2. Jaco Visagie, 3. Fraser Balmain; 4. Tom Savage, 5. Gerbrandt Grobler; 6. Freddie Clarke, 7. Jake Polledri, 8. Ben Morgan.
Replacements: 16. Henry Walker, 17. Val Rapava Ruskin, 18. Ciaran Knight, 19. Ed Slater, 20. Gareth Evans, 21. Callum Braley, 22. Billy Twelvetrees, 23. Jason Woodward