Following Arsenal's frustrating exit from the Europa League on Thursday, captain Pierre-Emerick Aubameyang apologized to fans.
Mikel Arteta's side were unable to recover from a 2-1 loss in the first leg of the semi-final against Villarreal, who are led by former Arsenal manager Unai Emery.
The result leaves the Gunners in 10th place in the Premier League, with just a small chance of qualifying for Europe next season.
If they do not qualify, it will be the first time in 25 years that they have not participated in a continental competition.
Writing in Arsenal’s official matchday program ahead of the clash with West Bromwich Albion, Aubameyang tried to dissect what exactly went wrong, before revealing how deeply the failure has affected him and his teammates.
“We struggled to find our rhythm in the first half and didn’t give Villarreal enough problems,” he said.
“When we had a chance, the luck wasn’t there for us, when I hit the post with the volley and then the header in the second half.
“I thought we started the second half with more energy and put them under pressure, but we just couldn’t maintain that drive and ultimately, we just couldn’t find a way through Villarreal.
“I thought my header was in when it hit the post, but it just wasn’t going to happen.
“Like I said, we are really upset about going out of the competition at this stage, for ourselves, for the club, and most of all for you the supporters. It’s been such a difficult season for fans and we desperately wanted to give you something positive this season – I’m just so sorry we couldn’t do it for you.”