Arsenal have made it two wins from their opening two UEFA champions League fixtures for the 2013/14 campaign.
The Gunners produced an impressive display to beat Napoli 2-0 at the Emirates Stadium to remain top of Group F.
Ramires opened the scoring in the 20th minute when he flicked home from close range before an own-goal from Daniel Georgievski gave the Blues a commanding lead on the stroke of half-time.
Ramires made it 3-0 ten minutes into the second half when he fired home from the right side of the box before Frank Lampard rounded off the win with a late low finish from just outside the area.
The Scottish giants lost skipper Scott Brown on the hour-mark when he kicked out at Neymar and it proved too be decisive as the Catalan club went ahead in the 76th minute when Alexis Sanchez crossed for Cesc Fabregas to head home to give Tata Martino his second win in Europe's premier club competition.
A brace from Robert Lewandowski allowed Borussia Dortmund to secure a 3-0 home victory over Marseille in Group F, Atletico Madrid came from behind to beat FC Porto 2-1 in Group G and AC Milan required an injury-time penalty from Mario Balotelli to cancel out Ajax's 90th minute goal to force a 1-1 draw in Group H.
Wednesday nights fixtures see Shakhtar Donetsk host Manchester United and Real Sociedad head to Bayer Leverkusen in Group A, Juventus take on Galatasaray in Turin and FC Copenhagen away at Real Madrid in Group B, PSG at home against Benfica and Olympiakos at Anderlecht in Group C as CSKA Moscow meet Viktoria Plzen and reigning champions Bayern Munich head to Manchester City in Group D.
2013/14 UEFA Champions League scores - Matchday 2
Zenit St Petersburg (RUS): 0 Austria Vienna (AUT): 0 Petrovsky Stadium, St Petersburg, Russia - 18,785
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