The Europa League knockout stages begin as Arsenal travel to Piraeus, Greece to face Olympiakos on Thursday.

This will be a tough test for Arsenal, as Olympiakos arrive in this round of the competition after finishing third in their very difficult Champions League group, which consisted of Bayern Munich, Tottenham and Red Star Belgrade.

They are currently flying high domestically as well and are undefeated at top of the Greek league after 24 games.

The Stadio Karaiskáki will certainly be a difficult place to visit, as Olympiakos earned a 2-2 draw against north London Tottenham in the Champions League and Bayern Munich just about edged out a 3-2 victory in Piraeus.

For Arsenal, life under Mikel Arteta has seen performances drastically improve.

A 4-0 thumping of Newcastle on Sunday increased their unbeaten streak to eight games in all competitions and has raised momentum coming into this tie.

With both teams in good form, this fixture should be an exciting game to watch and you can certainly expect the Gavri to be in full voice.