The groups were jam-packed with heavyweights – Group A featured Paris Saint-Germain and Real Madrid, Group E saw Liverpool and Napoli battle it out while trio Barcelona, Inter Milan and Borussia Dortmund competed in Group F.
It made for some box office matches between the very best in Europe and of course, some sensational goals. Here are 10 of the standout strikes from the 2019/20 Champions League group stages.
Hakim Ziyech v Valencia - Matchday 2
Ajax won hearts and minds during their remarkable run to the Champions League semi-finals last season, knocking out Real Madrid and Juventus on the way with some scintillating attacking football under Erik ten Hag.
Inevitably the Dutch side were picked apart by the big boys in the summer - both Frenkie de Jong and Matthijs de Ligt left for Barcelona and Juventus respectively.
But one who remained, Moroccan winger Hakim Ziyech, provided Ajax supporters with another moment to remember this season when he netted a spectacular long-range strike against Valencia.
In an wide-open start to the match, Ziyech took matters into his own hands by cutting inside onto his left foot and sending a looping, curling effort over a stunned Jasper Ciillessen and into the net to quieten the Mestalla.
Paulo Dybala v Lokomotiv Moscow - Matchday 3
With a bloated squad and a need to balance the books following the Cristiano Ronaldo signing, Juventus were keen to offload some stars this summer. It just seems bizarre that Paulo Dybala was close to being one of the fall guys.
And after his proposed move to Tottenham fell through, the Argentine underlined his importance to the Old Lady with three big goals in this season’s group stages – two of which make this list.
With 14 minutes remaining and his side a goal down at home to Lokomotiv Moscow, Dybala collected possession 20 yards from goal, checked onto his left and thumped past Guilherme before the goalkeeper could react.
Dybala then struck again two minutes later to secure the three points to send the Allianz Stadium into raptures.
Marcel Sabitzer v Zenit St Petersburg - Matchday 3
A howitzer from Marcel Sabitzer handed RB Leipzig victory over Zenit St Petersburg in Matchday 3 and it was a goal worthy of winning any game.
Having drawn level four minutes after the interval, Emil Forseberg and Lukas Klostermann combined down the left flank with the latter picking out Sabitzer on the far corner of the box.
The Austrian chested down, set himself and struck a delicious half-volley that flew into the very corner of the top corner to complete Leipzig’s comeback against the Russians.
It was a memorable strike from a player fast building a reputation for scoring stunners. The slow-motion camera angle behind him is a particularly satisfying watch.
Alex Oxlade-Chamberlain v Genk - Matchday 3
An outrageous goal from Alex Oxlade-Chamberlain as the Liverpool midfielder poked home with the outside of his boot to score his second of the night in Genk.
Roberto Firmino cut inside and teed up Oxlade-Chamberlain on the edge of the box and the Englishman produced a wonderfully-executed first-time finish with a casual flick of his right boot.
The ball flew in off the bar leaving Genk’s defence stunned and Liverpool on their way to a 4-1 victory in Belgium. But spare a thought for the two Liverpool supporters who accidentally went to Ghent rather than Genk and missed such a special strike.
Geoffrey Kondogbia v Lille - Matchday 4
Your textbook screamer from Valencia midfielder Geoffrey Kondogbia who unleashed a thunderous effort to seal victory over Lille at the Mestalla.
The Frenchman gathered possession around 40 yards out, trundled forwards and unleashed a missile of a strike with his left foot that swerved past the helpless Mike Maignan and into the net.
Exemplary technique from Kondogbia as Valencia went on to upset the odds and top a group also featuring Chelsea and Ajax to qualify as a seeded team for the knockout stages.
Paulo Dybala v Atletico Madrid - Matchday 5
The second Dybala goal on this list and another example of just how talented the Juventus forward is.
Awarded a free kick, wide to the right and a yard outside the box, Atletico set up to defend the cross. “Looks as though it’s going to be Dybala to deliver it,” came the commentary.
Instead Dybala, confidence clearly flowing through his veins, lashed a ferocious effort into the roof of the net from an incredibly acute angle leaving Jan Oblak in a heap inside his own goal.
Another stunner to add to Dybala's growing collection, the 26-year-old is enjoying a growing reputation all while playing with Ronaldo for club and Lionel Messi for country.
Sven Bender v Lokomotiv Moscow - Matchday 5
An unlikely entrant on this list, Bayer Leverkusen defender Sven Bender made the most of a rare foray into the opposition box with a thumping volley à la Robin van Persie.
Bender ran on to Charles Aranguiz’s chip, waited for the ball to drop over his head and thrashed an unstoppable volley into the far top corner, all with a Lokomotiv Moscow defender closing in.
Leverkusen would fail to make it to the knockout stages but the former finalists can at least recall one of the finest goals you're likely to see from a centre back. A first-ever Champions League goal for the Germany international and one to remember.
Houssem Aouar goal v RB Leipzig- Matchday 6
With his side trailing 2-0 to RB Leipzig in their final match and on their way out of the competition, Lyon needed some inspiration. It came in the form of Houssem Aouar’s wonderful, curled finish into the top corner.
The Frenchman collected the ball on the edge of the box, took two deft touches to draw Leipzig's Nordi Mukiele in and another to create some space.
The fourth saw him use Mukiele as a shield, bending his shot nonchalantly over a dumbfounded Peter Gulasci and into the top corner of the Leipzig goal.
The goal would prove crucial, with Memphis Depay completing the comeback eight minutes from time to send Lyon through to the knockout stages.
Mohamed Salah v Red Bull Salzburg - Matchday 6
A second goal from the defending champions and this time scored from a seemingly impossible angle.
Mohamed Salah was having a rare off night in front of goal having missed a hatful of presentable opportunities for Liverpool in a match they had to avoid defeat in to progress.
Naby Keita eased the tension with his headed opener in the 57th minute and 60 seconds later a long ball forward sent Salah scampering towards the Austrians' goal.
Sensing danger, the Egyptian latched onto a weak defensive header and took a touch to evade onrushing Salzburg goalkeeper Cican Stankovic. "Terribly difficult angle," said commentator Darren Fletcher.
Yet the Liverpool forward, running at pace, somehow conjured up a right-footed shot that curled away from the front post, into the far post and nestled in the bottom corner.
Dani Olmo v Manchester City - Matchday 6
With a resounding 4-0 win over Atalanta to begin their campaign and a topsy-turvy 3-3 draw with Shakhtar Donetsk in Matchday 4, Dinamo Zagreb left their mark on the group stages even if they did eventually finish bottom.
The jewel in their crown is 21-year-old winger Dani Olmo, who made the brave decision of swapping Barcelona’s La Masia academy for the Croatian capital as a 16-year-old. It’s certainly paid off – with a call-up to the Spanish senior squad last month.
Olmo’s shining moment in Dinamo's Champions League campaign came in the final match, where he briefly gave the home side hope of qualifying for the knockouts with a sensational volley.
The Spaniard darted into the box to latch onto Damian Kadzior’s lofted through ball, smashing a rasping first-time effort past Claudio Bravo to give his side the lead before Dinamo eventually succumbed to City’s superiority.