Although Arsenal managed to go through to the last 8 of the Europa League, we can’t ignore the fact that tasted defeat against Olympiacos.
The Gunners were poor all throughout the game and were completely dominated by Olympiacos, having only 46% of the formation.
The only goal of the game came in the 51st minute and was scored by Youssef El Arabi.
Though Arsenal had the better chances of the game despite losing possesion, taking twelve shots in the game with five ending up on target.
Olympiacos Ousseynou Ba was unlucky to get a red card in the 82nd minute of the game as it shattered all Olympiacos hopes of securing a comeback.
Below are stated observations of Arteta of mistakes and why Arsenal lost their second leg tie against Olympiacos.
Starting only one natural winger
Arteta took a bold tactical decision to start only Nicolas Pepe against Olympiacos as the only natural winger on the pitch. Pepe occupied the right wing for Arsenal while Smith-Rowe, an attacking midfielder, occupied the right.
This wasn’t the best of decisions given Arteta has Willian on the bench for the game.
Bad defensive set up
Arsenal set up with a 4-2-3-1 formation which became a 4-4-2 flat without possession.
This might not have being the best formation to counter Olympiacos 3-4-3 formation as it was impossible to track the wingbacks then.
Matching Olympiacos formation with the same 3-4-3 formation would’ve being the best option for Arsenal.