However, there were plenty of other stars creating magic on the pitch.
Bayern Munich and Real Madrid created the most magic on the pitch in their respective blowout victories.
The two clubs battled for the top spot in the B/R Champions League Power Rankings after Week 1, and they did just the same after Week 2.
Which European superpower earned the No. 1 spot?
Continue reading to find out.
32. Steaua Bucharest (32)
The Romanians fell at home to Chelsea on Tuesday night as their Group E misery continued.
Their best shot at earning points will come during Week 3 against Basel at home.
31. Austria Wien (31)
After falling to Porto at home during the first matchday, Austria Wien played to a very dull, scoreless draw in Russia against Zenit St. Petersburg.
30. Viktoria Plzen (30)
The Czech side did score twice in Russia against CSKA Moscow, but they could not sneak a final equalizer past CSKA keeper Igor Akinfeev.
The loss kept Plzen at the bottom of Group D with no points.
29. Anderlecht (29)
Anderlecht conceded three goals—all scored by Kostas Mitroglou—to Olympiacos at home on Wednesday as they fell into the Group C basement.
28. Zenit St. Petersburg (23)
Zenit had a great opportunity in front of them on Tuesday to earn three points at home against Austria Wien. Instead, they fell flat and played to a stale, goalless draw.
27. Marseille (20)
You have to feel bad for Marseille as they continue to get knocked around by the powers of Group F.
It does not get any easier for the French side in Week 3 as a hungry Napoli side visits the Stade Velodrome.
26. Real Sociedad (28)
Jagoba Arrasate's side played well in Germany against Bayer Leverkusen but not well enough.
La Real could only manage one goal—by way of Carlos Vela—in their Group A defeat to the Germans.
25. Copenhagen (19)
The Danish side's excursion to the Bernabeu ended in a 4-0 thrashing by host Real Madrid.
24. Celtic (21)
Neil Lennon's side could not recreate their magical night in 2012 in Glasgow against Barcelona.
After captain Scott Brown was sent off in the 59th minute, Celtic had a lot going against them to record a point, which is something they failed to do on Tuesday night.
23. CSKA Moscow (26)
While they may not be able to play matches in their own stadium, CSKA Moscow are able to win matches against lesser opposition.
That is exactly what they did in St. Petersburg against Viktoria Plzen thanks to a horrible howler by Plzen keeper Matus Kozacik.
22. Ajax (24)
For three minutes at the end of the second half, Ajax thought they had a victory over AC Milan.
All of that changed when Mario Balotelli slotted home a last-minute penalty to turn the final result into a draw.
21. Olympiacos (27)
The Kostas Mitroglou goal-scoring spectacular took over Constant Vanden Stock Stadium in Belgium as the Greek side jumped into second place in Group C behind his hat-trick.
20. Galatasaray (25)
Roberto Mancini's managerial debut for Galatasaray was a wild and wacky affair at Juventus Stadium in which his side drew 2-2.
With the result, the race for second place behind Real Madrid in Group B is now on between the Turks and Juventus.
19. Bayer Leverkusen (22)
Jens Hegeler's booming free kick in the 93rd minute handed Sami Hyypia's side an important victory in Group A over Real Sociedad.
18. FC Basel (17)
After shocking the world in their first Champions League match this season, Basel failed to score at home against Schalke, and because of that, fell down to third in Group E.
17. Porto (12)
Had Porto's match with Atletico Madrid been played for just one half, we would be saying more positive things about the performance of the Portuguese club on Tuesday night.
Previous Ranking: 10
Week 2 Result: Loss to Paris St. Germain, 3-0.
After 30 minutes of play in Paris, Benfica had already conceded three goals to the French champions, PSG, and their Week 2 fate was sealed.
Jorge Jesus's side will look to recover in Week 3 against Olympiacos at home in a match that will go a long way in determining the second-place club in Group C.
Previous Ranking: 18
Week 2 Result: Win over FC Basel, 1-0.
Julian Draxler's 54th-minute wonder strike sent Schalke to the top of Group E.
Draxler's sizzling, right-footed shot sailed past Basel keeper Yann Sommer, and in the process, it handed the German club a very important road victory.
Schalke's spot atop the group will be tested on October 22 when Chelsea storms into the Veltins Arena in Gelsenkirchen.
Previous Ranking: 13
Week 2 Result: Draw with Ajax, 1-1.
Mario Balotelli helped AC Milan escape what could have been a disappointing loss in Amsterdam against Ajax.
The Italian forward knocked home a last-gasp penalty on Tuesday night to keep the Rossoneri in second place in Group H.
Max Allegri's side will now have three weeks to prepare for a match that will be chock full of superstars at the San Siro against Barcelona with first place in the group on the line.
Previous Ranking: 7
Week 2 Result: Loss to Bayern Munich, 3-1.
Manchester City's European struggles continued on Wednesday night as they were defeated by Bayern Munich at home.
In the loss, the play of keeper Joe Hart came into question on numerous occasions.
If Hart continues his putrid play in net, City may have to go out and spend on a keeper in January to turn their European dreams into a reality.
Previous Ranking: 14
Week 2 Result: Win over Porto, 2-1.
Fresh off of their victory in the Madrid derby this weekend, Atletico Madrid took down Porto in an Iberian derby in Portugal on Tuesday.
After marching to the locker room facing a one-goal deficit, the Spanish side turned things around in the second half as both Diego Godin and Arda Turan scored to ensure that Los Rojiblancos left the Estadio do Dragao with a three-point lead in Group G.
Previous Ranking: 11
Week 2 Result: Draw with Galatasaray, 2-2.
After a grim 75 minutes of football, Juventus woke up and played 15 minutes of urgent football as they tried not to drop points at home against Galatasaray.
A win seemed to be in the cards for Antonio Conte's side after an 87th-minute goal from Fabio Quagliarella.
However, a win was not to be for Juve as Umut Bulut equalized for the Turks just a minute later.
Two disappointing and unexpected draws to begin their European campaign have sunk Juventus four points behind Group C leaders Real Madrid ahead of their clash at the Bernabeu.
Previous Ranking: 16
Week 2 Result: Win over Steaua Bucharest, 4-0.
Chelsea did exactly what they were expected to do on Tuesday night in Romania, and that was win emphatically.
A double from Ramires and a second-half strike from Frank Lampard helped hand the Blues a commanding win over Steaua Bucharest.
The four-goal output will also help the Blues in the long run as they fight with Schalke and Basel for the two spots in the knockout stage in Group E.
Previous Ranking: 15
Week 2 Result: Win over Marseille, 3-0.
Without Jurgen Klopp roaming the touchline and Roman Weidenfeller in goal because of suspension, Borussia Dortmund took down Marseille by three goals at home.
Robert Lewandowski and Marco Reus contributed goals to the winning cause over the French side, which seems to be the punching bag of Group F.
Last season's runner-up can make a massive statement when they take the pitch next in the Champions League as they visit North London to take on a streaking Arsenal side.
Without Rooney, RVP was silenced in Donetsk.
Previous Ranking: 6
Week 2 Result: Draw with Shakhtar Donetsk, 1-1.
David Moyes' second match in charge of Manchester United in the Champions League did not go as expected.
With Wayne Rooney out due to injury, Moyes' side managed just two attempts on target in the Ukraine against Shakhtar.
The Red Devils were lucky to leave the Donbass Arena with a point as their only goal was handed to them by the Shakhtar defense.
Previous Ranking: 5
Week 2 Result: Loss to Arsenal, 2-0.
Rafa Benitez may have changed how he is thought of in Italian footballing circles with his early-season success at Napoli, but he still cannot win at the Emirates Stadium.
Benitez's Napoli side, which was without Gonzalo Higuain, conceded two early goals to Arsenal and could not rebound from their deficit.
To keep themselves from falling into an inescapable hole in Group F, the Partenopei will have to take care of business against Marseille in three weeks.
Previous Ranking: 9
Week 2 Result: Draw with Manchester United, 1-1.
Shakhtar Donetsk remained level on points in Group A with Manchester United after Taison's 78th-minute equalizer in the match between the two clubs in Ukraine.
The Brazilian-laden Shakhtar side put together an impressive performance against a reeling United side, which included 56 percent of possession and five attempts on target compared to United's two.
Previous Ranking: 8
Week 2 Result: Win over Benfica, 3-0.
Zlatan Ibrahimovic scored twice in PSG's dominant home win over Portuguese side Benfica.
Ibrahimovic's second goal in the 30th minute marked the first time in exactly six years that he had scored a headed goal in the Champions League.
The last headed goal from the Swede on Europe's biggest stage came when he was a member of an Inter Milan squad taking on PSV.
Previous Ranking: 3
Week 2 Result: Win over Celtic, 1-0.
Barcelona evaded a second consecutive Champions League defeat at Celtic Park with a 1-0 victory over the Scottish champions.
The Catalans came to life toward the end of the second half, and they were finally rewarded for their efforts in the 76th minute with a goal from Cesc Fabregas.
Although they did take three points away from their excursion to Scotland, Barca will have to play much better than they did on Tuesday to take down AC Milan in the Group H clash of the titans on October 22.
Previous Ranking: 4
Week 2 Result: Win over Napoli, 2-0.
The Gunners continued their terrific form on the continental stage against Napoli at the Emirates Stadium.
Mesut Ozil and Olivier Giroud struck once each in the first 15 minutes in North London to send the Gunners to the top of Group F.
Arsene Wenger's men will have a chance to solidify their claim as favorites to win the group against Borussia Dortmund at home on the third matchday.
Previous Ranking: 1
Week 2 Result: Win over Copenhagen, 4-0.
Cristiano Ronaldo's European scoring showcase highlighted Real Madrid's four-goal outburst against visiting Copenhagen.
Ronaldo scored the first two goals of the match before Angel Di Maria matched him with a brace of his own in the final 19 minutes of the match.
With two wins to open play in Europe this season, Los Blancos are on course to cruise through Group B.
Carlo Ancelotti's men will face their toughest test of the group stage on October 23 when Juventus visit the Bernabeu.
Previous Ranking: 2
Week 2 Result: Win over Manchester City, 3-1.
Bayern Munich once again asserted their European dominance on Wednesday night in Manchester.
Powered by goals from Franck Ribery, Thomas Muller and Arjen Robben, Bayern cruised to the top of Group D, which is a spot they are not expected to leave anytime soon.
The win was a statement by Pep Guardiola's men that they will have no problem, once again, winning on the road under the bright lights of European play.
Expect Bayern to demolish Group D bottom-feeders Viktoria Plzen on October 23 at the Allianz Arena.
Who do you think should be on top of the Champions League Power Rankings?
Comment below or leave me a comment on Twitter, @JTansey90.