Aston Villa and Nottingham Forest now know who they will face in the Europa League group phase, while Crystal Palace have discovered their fate in the Europa Conference League draw.
The Eagles were demoted to the Conference League following an intervention from UEFA owing to multi-club ownership rules despite winning the FA Cup last term, with Forest profiting from their misfortune.
Villa will face Fenerbahce but will not come up against Jose Mourinho, who was sacked prior to Thursday's draw. They will also host Bologna and RB Salzburg in the group phase with a trip to Feyenoord also pencilled in.
READ MORE: Gary Neville makes bold prediction for Liverpool vs Arsenal as weakness becomes clear
READ MORE: Ruben Amorim already has Man Utd exit route with possible job in the pipeline
Forest face tough games against FC Porto and Real Betis in the group phase. Their schedule also includes fixtures with Sturm Graz and FC Utrecht, both of which are away games.
Here's the full fixture lists for the British teams involved across both tournaments:
Aston Villa: Salzburg (H), Feyenoord (A), Maccabi Tel-Aviv (H), Fenerbahce (A), Young Boys (H), Basel (A), Bologna (H) and Go Ahead Eagles (A)
Nottingham Forest: Porto (H), Real Betis (A), Ferencvaros (H), Braga (A), Midtjylland (H), Sturm Graz (A), Malmo (H) and Utrecht (A)
Celtic: Roma (H), Feyenoord (A), Braga (H), Crvena Zvezda (A), Sturm Graz (H), Midtjylland (A), Utrecht (H), Bologna (A)
Rangers: Roma (H), Porto (A), Braga (H), Ferencvaros (A), Ludogorets (H), Sturm Graz (A), Genk (H) and Brann (A)
Crystal Palace: AZ Alkmaar (H), Dinamo Kyiv (A), KuPs (H), Strasbourg (A), Larnaca (H), Shelbourne (A)
There will be more to follow on this breaking news story and Mirror Sport will bring you the very latest updates, pictures and video as soon as possible.
Please check back regularly for updates on this developing story.
Follow us on Google News, Flipboard, Apple News, Twitter, Facebook or visit The Mirror homepage.
You may also like
1000-lb Sisters star Katie Slaton's family speak out after tragic death
Xavi Simons breaks silence after choosing Tottenham over Chelsea as transfer confirmed
Christian Horner hit with further blow to F1 comeback hopes by Flavio Briatore
'We bought dream £275k home - family can't visit because of dangerous problems'
India's GDP growing at a robust pace despite global uncertainties: Economist