Another day of records, and Danny Welbeck seems to be enjoying life at Arsenal after scoring a hat-trick, only the third in the Gunners' UEFA Champions League history.
For all the other nuggets of gold that will help you impress anyone talking Champions League today, read on.
Arsenal 4-1 Galatasaray
- Arsenal recorded its biggest Champions League victory since beating AC Milan 3-0 on 6 March 2012.
- Galatasaray has now conceded a goal in 18 consecutive away matches in the Champions League, the longest streak of all teams participating in this season's competition.
- Danny Welbeck became the first player for Arsenal to score a hat-trick in a Champions League match since Nicklas Bendtner on 9 March 2010 in Arsenal's 5-0 victory over FC Porto. Thierry Henry is the only other Arsenal player to score a hat-trick in the Champions League.
- Welbeck is the first English player to score a Champions League hat-trick since Michael Owen on 8 December 2009 (Wolfsburg v Manchester United 1-3).
- Wojciech Szczesny received his second red card in the Champions League after his sending off against Bayern Munich on 19 February 2014. He is the fourth player to be sent off twice in a calendar year after Yuri Koftun (1999), Zinedine Zidane (2000) and Servet Cetin (2004).
- Arsenal has had 15 players sent off in the Champions League, equal most to opponent Galatasaray. Only Inter (17) and Juventus (20) have received more red cards.
- Burak Yilmaz scored his 10th CL goal for Galatasaray. Only Hakan Sukur has scored more: 13 goals.
Ludogorets 1-2 Real Madrid
- Real Madrid equalled its club record by winning six matches in a row in Europe. It also achieved this in September-December 2011.
- Real Madrid won a Champions League group stage match away from home after trailing for the first time since 1 October 2003, when it won 3-1 at FC Porto.
- Real conceded the fastest goal (six minutes) since 21 October 2008, when Alessandro Del Piero scored after five minutes for Juventus. Juve won 2-1 at home.
- Cristiano Ronaldo scored his 69th Champions League goal, and is now two short of Raul's all-time record total of 71. This was Ronaldo's 35th Champions League goal in an away match, more than any other player.
- Ronaldo has scored in each of his past nine Champions League away matches. The last time he failed to score on the road was on 21 November 2012, when Real drew 1-1 at Manchester City.
- Karim Benzema scored his 38th Champions League goal in his 66th match. Only Van Nistelrooy (45) and Messi (59) needed fewer matches to reach 38 goals.
- Benzema has now been involved in 14 goals in his past 14 Champions League appearances: 8 goals, 6 assists.
FC Basel 1-0 Liverpool
- Basel has now won each of its past four Champions League matches against English opposition.
- Basel remains unbeaten in six home matches in a row in Europe. It last had had a run of six unbeaten home matches in from October 2012 to April 2013.
- Liverpool lost against a Swiss side for the first time since 1971 (Servette). It had not lost its next nine matches against Swiss clubs.
- Marco Streller (2011/12, 2013/14, 2014/15) became the first player from Switzerland to score a Champions League goal in three different seasons.
Anderlecht 0-3 Borussia Dortmund
- Anderlecht is winless in 10 consecutive Champions League matches, the longest streak of this season's teams.
- Anderlecht has now failed to keep a clean sheet in 10 consecutive Champions League matches (home and away), the third longest streak of all teams in this season after CSKA Moscow (12) and BATE (14).
- Anderlecht has conceded 17 goals in its past five Champions League home matches.
- Anderlecht has conceded at least three goals in its past five Champions League home matches, extending its own Champions League record.
- Anderlecht conceded its second fastest goal in a Champions League home match (three minutes). The fastest came on 18 October 2000 from Dynamo Kiev’s Kakha Kaladze in the first minute.
- Adrian Ramos scored his first two Champions League goals.
Malmo 2-0 Olympiacos
- Malmo claimed its first win in the UEFA Champions League. It is the first win for a Swedish team in 14 years, since Helsingborgs beat Rosenborg 2-0 on 18 October 2000.
- Malmo ended a run of six home matches without a win in the main European tournament. Its previous win came away at Besiktas (1-0) on 15 September 2005.
- Markus Rosenberg (Ajax, Werder Bremen, Malmo) became the third player from Sweden after Henrik Larsson and Zlatan Ibrahimovic to score a Champions League goal for at least three different sides. He became the fourth player to score a Champions League brace for a Swedish side and the first since Andreas Andersson (AIK) on 2 November 1999. It was the first goal for a Swedish team on home soil since 8 November 2000, when Nicklas Persson netted for Helsingborgs against Paris Saint-Germain (1-1).
- Olympiacos played its 100th Champions League match, the most of all Greek teams.
Atletico Madrid 1-0 Juventus
- Atletico is unbeaten in seven Champions League home matches for the first time.
- Arda Turan's goal was the first that Juventus has conceded in a competitive match this season (7 matches) and for the first time in 11 matches in all competitions, since a 3-1 win at Sassuolo on 28 April.
Zenit St. Petersburg 0-0 Monaco
- AS Monaco remains unbeaten in its first two group stage matches in the Champions League for the second time after 2003/2004, when it went on to reach the final.
- The last time Monaco recorded a goalless draw in European competition was also in the 2003/2004 Champions League group stage, when it drew 0-0 at AEK Athens.
- Zenit drew its last home match 0-0 with Spartak Moscow and they have now recorded two goalless home draws in a row in all competitions for the first time since November 2011.
- Andre Villas-Boas became the first Zenit manager to remain undefeated in his first two Champions League matches.
- This was the first time in the competition that two Portuguese managers faced each other in a match between two non-Portuguese sides: André Villas-Boas (Zenit) and Leonardo Jardim (Monaco).
Bayer Leverkusen 3-1 Benfica
- Bayer Leverkusen has now won at least one of its first two Champions League group stage matches in eight of its past nine appearances, the exception being 2002/2003 (lost two).
- Stefan Kiessling's goal ended Leverkusen's longest drought in Champions League home matches after scoring for the first time in three fixtures at the BayArena.
- Son Heung-Min scored his first Champions League goal and became the second player from South Korea to score in the competition after Park Ji-Sung.
- Hakan Calhanoglu scored from the penalty spot. It was Leverkusen's first Champions League penalty goal since 23 October 2013 against Shakhtar Donetsk.
- Benfica scored for the first time in its Champions League away matches against German opposition.
- Benfica conceded its 400th and 401st goal in European club competitions. It is the fifth team to concede more than 400 goals, after Real Madrid (514), FC Barcelona (514), Anderlecht (495) and Bayern Munich (430).
Compiled by Toby Forage and Infostrada