Steven Gerrard’s Rangers were heading for top spot in their Europa League group after Alfredo Morelos put them ahead against Young Boys in Bern.
But two errors cost the Gers dearly and the Scottish Premiership leaders now face a double header against group favourites Porto.
Can the 2008 finalists confound the odds and pick up three invaluable points against the two-time winners?
Read on for all the information you need about how to watch Porto v Rangers - or simply jump to a specific section from the list below:
• When is Porto v Rangers? >
• How to get a BT Sport subscription >
• How to watch on a laptop >
• How to watch on a phone or tablet >
• How to watch on TV >
• What if I can't watch live? >
• What other live football does BT Sport show? >
• More on Porto v Rangers >
When is Porto v Rangers?
Porto v Rangers will be shown exclusively live at 5.15pm (5.55pm kick-off) on Thursday 24 October on BT Sport 3 HD on TV and across our digital platforms.
How to get a BT Sport subscription
Choose your preferred or most relevant option below and we'll get you set up with BT Sport in just 15 minutes.
How to live stream Porto v Rangers on a laptop
BT Sport customers can bookmark this page, return at the start of our live coverage and then open this Porto v Rangers live stream.
The stream will also be accessible through the BTSport.com homepage.
Anyone tuning in on their laptop can benefit from watching on the revolutionary enhanced video player.
This means a fully immersive viewing experience, featuring an interactive timeline, multi-camera functionality, 360° live streaming and highlights, and goal alerts from other live matches.
How to live stream Porto v Rangers on a phone or tablet
BT Sport customers wanting to watch on the go can open the award-winning BT Sport app at the start of our live coverage and then follow the link on the homepage.
Just as on laptop, BT Sport app viewers will be available to enjoy the game on our enhanced video player.
How to watch Porto v Rangers on TV
*BT Sport customers can download the BT Sport app on PS4, Xbox, Apple TV and Samsung Smart TVs (2015 models onwards). To watch the action, follow the link on the homepage ahead of kick-off.
What if I can't watch Porto v Rangers live?
No problem. The enhanced video player will continue to be available online after the live coverage has finished, meaning customers can watch all the action 'as live' at their leisure or simply use the interactive timeline to catch up with all the key moments.
A highlights package of the clash will be made available to all shortly after the game on both BTSport.com and the BT Sport app. We'll also publish in-game clips throughout the 90 minutes.
Alternatively, subscribers can tune in to our exclusive live Europa League Highlights Show from 10.30pm on BT Sport 2 HD and online as we bring you the best bits of all the night's action.
There will also be several opportunities to watch extended highlights on TV. For more information on the latest listings, check out our TV Guide.
Meanwhile, more extended highlights and full event replays can be found on our TV Catch Up page.
What other live football does BT Sport show?
BT Sport also offers exclusive coverage of the Bundesliga and Ligue 1, plus a host of fixtures from the Women's Super League, UEFA Youth League, England Under-21 internationals, Australian A-League and much more.
For full details of BT Sport's upcoming live football schedule, check out our Live on BT Sport page.