Lukasz Fabianski has apologised for his horror show in Arsenal's FA Cup semi-final exit against Chelsea.
The Poland international endured an afternoon to forget at Wembley on Saturday as he ultimately proved responsible for the Gunners' 2-1 defeat.
He made a succession of errors throughout the game, with his woes culminating six minutes from time as a rash decision to rush from his box allowed Didier Drogba to snatch a late winner.
Arsenal boss Arsene Wenger has been quick to offer his support to the 24-year-old, though, and kept faith with Fabianski for Tuesday's epic 4-4 draw with Liverpool.
The Pole produced a number of smart saves at Anfield to help restore his confidence, but he admits to still being haunted by his sub-standard efforts against the Blues.
"After the weekend, I was really feeling down," Fabianski told Arsenal TV Online.
"I know that it was mostly because of me that we did not qualify for the FA Cup final.
"When you are honest and look with honest eyes on that, you can say it.
"Every day I had been waking up with the game still in my mind, so it was not easy.
"When the season is finished, maybe I will clear it out from my mind.
"It was a big, big chance to win something this season in the FA Cup.
"I did not help my team like I should have, and I am sorry for that."
Fabianski added: "I want to thank all of my team-mates and the staff, because they were really helping me.
"I really appreciate that and the atmosphere in the club, which is so fantastic.
"I was quite happy with my performance against Liverpool, but it is a strange feeling with [letting in] four goals, I could have been much happier had we won."
The midweek stalemate at Anfield has kept Arsenal in the hunt for a third-place finish in the Premier League, while it also stretched their unbeaten run to 19 games.
Fabianski sees no reason why the Gunners cannot carry that form through to the climax of the campaign, edging cup conquerors Chelsea into fourth in the process.
He added: "We are still optimistic for the last games of the season.
"We want to be unbeaten in the Premier League, so we will try to do our best and hopefully achieve third place."