The returning Lionel Messi of Barcelona celebrates scoring his team's second goal against Roma in the 6-1 rout.
In the wake of the Paris attacks, security was tight at the Nou Camp stadium with a Catalan police officers making an inspection of the sewers before the Group E match between Barcelona and Roma.
Zenit's Russian forward Artem Dzyuba celebrates after scoring the second goal in the 2-0 win over Valencia to maintain a 100 percent record for the Group H leaders after five games.
Douglas Costa of Bayern Munich scores his team' s opening goal against Olympiakos in the Allianz Arena.
Mesut Ozil of Arsenal made the crucial breakthrough for Arsenal against Dinamo Zagreb in the 3-0 win.
Gary Cahill boosted Chelsea with his goal in the Group G match in Haifa against Maccabi Tel Aviv as the Blues eventually won 4-0.