How will Wenger set Arsenal up? (Picture: Getty/Metro)

Arsenal have been rocked by the news that Alexandre Lacazette won’t be available for their Europa League tie against Ostersunds F.

The France international has been ruled out for up to six weeks with a knee injury, in what is a major blow to the Gunners’ hopes in European competition.

With Pierre-Emerick Aubameyang unable to play due to Borussia Dortmund’s involvement in the tournament, Arsene Wenger has some big decisions to make as to who should line up against the Swedish outfit.

Lacazette will miss the tie (Picture: AFP/Getty Images)

The Arsenal boss insists he will put out a strong team for the first leg as he shifts his focus towards the competition in the knockout stages.

So how will the Gunners line up without Lacazette?

Here we take a look at three potential options available to the Arsenal boss.

Keep it as it is with Welbeck in

Though Arsenal were well beaten by Tottenham Hotspur at the weekend, if Wenger is truly sticking with his strongest team then this is probably what he’d lump for.

David Ospina is expected to continue between the sticks in cup competitions and should replace Petr Cech, while Danny Welbeck is the obvious contender to step up in Aubameyang and Lacazette’s absence. Aaron Ramsey is still expected to miss out so Mohamed Elneny would most likely continue in midfield.

Shake up the formation

Arsenal have played three-at-the-back on many occasions this season and Wenger may see the clash against weaker opposition as a chance to give the likes of Sead Kolasinac a run out.

Reiss Nelson and Ainsley Maitland-Niles have also enjoyed success in the wing-back positions and Wenger may allow them a run out to keep some of his more prominent first-team members fresh for the league.

Go more attacking and give Nketiah a shot

Though Wenger may want to play a strong team, does he really need both Elneny and Granit Xhaka in midfield against Ostersunds? Probably not.

So why not give young Eddie Nketiah a chance, play Mesut Ozil just behind him and Danny Welbeck out wide left with Mkhitaryan pushing right?

Alternatively, Welbeck could remain through the middle, with Alex Iwobi returning to the side in a more attacking formation.