Arsenal came through some nervy second-half moments to register their first Champions League Group F victory of the season with a 2-1 win over Olympiacos at the Emirates Stadium.

Alex Oxlade-Chamberlain scored on his Champions League debut and Andre Santos bagged his first Arsenal goal after 20 minutes, but David Fuster took advantage of the hosts' poor defending to head home and reduce the deficit to one goal just before the half hour.

Vassilis Torossidis rattled the Gunners' bar in the second half and Kevin Mirallas also came close to scoring for the Greeks, but Arsenal hung on to take all three points and they remain in second place in the group ahead of next month's trip to Marseille.

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