Five English teams learned their group stage fate on Thursday as the Champions League draw took place.
Tottenham were put into the group of death alongside reigning champions Real Madrid, Borussia Dortmund and APOEL, while Chelsea will face Atletico Madrid, Roma and Qarabag upon their return to the competition.
Manchester United and Manchester City will be happy with their own draws. United face Benfica, Basel and CSKA Moscow. Pep Guardiola's outfit were drawn against Napoli, Feyenoord and Shakhtar Donetsk.
Liverpool, also returning after an absence, face Sevilla, Spartak Moscow and Maribor.
Here are the confirmed dates from UEFA for each matchday involving British teams...
Matchday One
Tuesday, September 12
- Manchester United vs Basel
- Celtic vs Paris Saint-Germain
- Chelsea vs Qarabag
Wednesday, September 13
- Liverpool vs Sevilla
- Feyenoord vs Manchester City
- Tottenham vs Borussia Dortmund
Matchday Two
Tuesday, September 26
- Spartak Moscow vs Liverpool
- Manchester City vs Shakhtar Donetsk
- APOEL vs Tottenham
Wednesday, September 27
- CSKA Moscow vs Manchester United
- Anderlecht vs Celtic
- Atletico Madrid vs Chelsea
Matchday Three
Tuesday, October 17
- Maribor vs Liverpool
- Manchester City vs Napoli
- Real Madrid CF vs Tottenham
Wednesday, October 18
- Benfica vs Manchester United
- Bayern Munich vs Celtic
- Qarabag vs Atletico Madrid
- Chelsea vs AS Roma
Matchday Four
Tuesday, October 31
- Manchester United vs Benfica
- Celtic vs Bayern Munich
- AS Roma vs Chelsea
Wednesday, November 1
- Liverpool vs Maribor
- Napoli vs Manchester City
- Tottenham vs Real Madrid
Matchday Five
Tuesday, November 21
- Sevilla vs Liverpool
- Manchester City vs Feyenoord
- Borussia Dortmund vs Tottenham
Wednesday, November 22
- Basel vs Manchester United
- Paris Saint-Germain vs Celtic
- Qarabag vs Chelsea
Matchday Six
Tuesday, December 5
- Manchester United vs CSKA Moscow
- Celtic vs Anderlecht
- Chelsea vs Atletico Madrid
Wednesday, December 6
- Maribor vs Sevilla
- Liverpool vs Spartak Moscow
- Shakhtar Donetsk vs Manchester City
- Tottenham vs APOEL
