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Arsenal and Dortmund signal intent

Last season's finalists Real Madrid CF and Club Atlético de Madrid won narrowly, Arsenal FC and Borussia Dortmund comfortably, and FC Basel 1893 sprung a surprise.

Danny Welbeck scored his first senior hat-trick in Arsenal's victory
Danny Welbeck scored his first senior hat-trick in Arsenal's victory ©AFP/Getty Images

Cristiano Ronaldo misses one penalty and scores another as Madrid beat Ludogorets
Danny Welbeck's first senior hat-trick helps Arsenal to defeat Galatasaray
Last season's runners-up Atlético down Juventus thanks to Arda Turan effort
Basel prevail at home to Liverpool via a Marco Streller goal
Malmö, Leverkusen and Dortmund also record matchday two victories 

Follow the links for video highlights (until 24.00CET on Thursday), match reports and extensive reaction.

Group A
Malmö FF 2-0 Olympiacos FC

• Markus Rosenberg struck both goals to lift Malmö alongside the other three teams in Group A on three points.

Club Atlético de Madrid 1-0 Juventus
• Atlético got off the mark in Europe courtesy of Arda's goal 15 minutes from time.

Group B
FC Basel 1893 1-0 Liverpool FC

• Streller scored the only goal just after half-time to earn Basel victory against the five-time European champions.

PFC Ludogorets Razgrad 1-2 Real Madrid CF
• The holders fell behind and missed a penalty inside the opening ten minutes, but prevailed through Cristiano Ronaldo's second spot kick and Karim Benzema's second-half volley.

Group C
FC Zenit 0-0 AS Monaco FC

• Yannick Ferreira-Carrasco came closest to breaking the deadlock when he hit a post, though both teams moved onto four points.

Bayer 04 Leverkusen 3-1 SL Benfica
• Strikes from Stefan Kiessling, Son Heung-Min and Hakan Çalhanoğlu ensured Leverkusen got off the mark in the section.

Group D
Arsenal FC 4-1 Galatasaray AŞ

• Danny Welbeck's first European goals for the Gunners – as the north London club went second in the section.

RSC Anderlecht 0-3 Borussia Dortmund
• Ciro Immobile's early effort and a brace from substitute Adrián Ramos helped to maintain Dortmund's 100% record.