Theo Walcott posts Selfie with Olivier Giroud after Arsenal’s Olympiakos win

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As you would expect after such a crucial victory, there were plenty of Arsenal player pictures on Instagram after the 3-0 win over Olympiakos in the Champions League on Wednesday evening.

Theo Walcott bagged a Selfie with hat-trick hero Olivier Giroud and this is significant since the two forwards, when fit, are often battling for one place up front in this Arsenal side.

Walcott played for 72 minutes and could be a key player over the Christmas period with Alexis Sanchez currently injured.

Calum Chambers, a late substitute in Greece, also posted a picture on Instagram after the Arsenal victory.

As did defensive midfielder Mathieu Flamini, from the plane home, alongside Laurent Koscielny. See all the pictures below.

Related content: Rio Ferdinand believes Arsenal’s Laurent Koscielny is the best defender in the Premier League (Video).

What a night in Athens! Hat Trick Hero!! #Giroud ⚽️⚽️⚽️

A photo posted by Theo Walcott (@theowalcott) on

Into the Champions League knockout stages! Huge result! And great hat-trick from Giroud!! ⚽️

A photo posted by Calum Chambers (@calumchambers95) on