Ronaldo on the double for Madrid
Cristiano Ronaldo scored twice as holders Real Madrid secured a 3-1 win at Borussia Dortmund to maintain their 100pc record to sit top of Group H alongside Tottenham.
The former Spurs striker Gareth Bale put the defending champions, who have seen their La Liga campaign get off to a slow start behind rivals Barcelona, in front with a well-taken volley on 18 minutes. Ronaldo, making his 150th appearance in European club competitions, doubled the lead at the start of the second half, converting a cut-back from Bale.
The Bundesliga leaders reduced the deficit through Pierre-Emerick Aubameyang on 54 minutes. Ronaldo, though, had the final say when slotting in a third with 11 minutes left to secure a first away win over their German rivals.
Sevilla have taken command of Group E as French striker Wissam Ben Yedder's hat-trick secured a 3-0 victory over Maribor, to leave the Spanish club two-points clear of Liverpool and Spartak Moscow.
Lorenzo Insigne's early goal helped Napoli get their campaign back on track, with a comfortable 3-1 win over Feyenoord addressing some of the damage done by their opening night defeat to Shakhtar Donetsk in Group F.
Dries Mertens and Jose Callejon added goals in the second half as the Italians registered their first points of the campaign. Napoli's Pepe Reina saved a 68th-minute penalty before the visitors scored a late consolation through Sofyan Amrabat.
Cameroon striker Vincent Aboubakar struck twice for FC Porto as last year's semi-finalists Monaco suffered a huge blow with a 3-0 defeat at home. Besiktas are the surprise early pace-setters in Group G, with former Liverpool star Ryan Babel setting the Turkish side on their way to a 2-0 win over RB Leipzig.