Champions League Matchday Five

Published 2143 GMT (0543 HKT) November 24, 2015
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The returning Lionel Messi of Barcelona celebrates scoring his team's second goal against Roma in the 6-1 rout. David Ramos/Getty Images Europe/Getty Images
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. JOSEP LAGO/AF/P/Getty Images
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. OLGA MALTSEVA/AFP/AFP/Getty Images
Douglas Costa of Bayern Munich scores his team' s opening goal against Olympiakos in the Allianz Arena. Matthias Hangst/Bongarts/Bongarts/Getty Images
Mesut Ozil of Arsenal made the crucial breakthrough for Arsenal against Dinamo Zagreb in the 3-0 win. Shaun Botterill/Getty Images
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. Ian Walton/Getty Images