Cesc Fabregas has taken responsibility for Arsenal's humbling at the hands of Barcelona in the last 16 of the Champions League.
Arsenal failed to muster a single shot on goal at the Nou Camp as Barca ran out comfortable 3-1 winners - a 4-3 aggregate victory - to end the Gunners' European dream for the second successive year.
Fabregas had been an injury doubt before the highly-anticipated encounter due to a hamstring ailment but Arsenal were boosted by the return of the their captain to the starting line up.
However, Fabregas was clearly short of match fitness and failed to complete the full 90 minutes - making way for Nicklas Bendtner with 12 minutes remaining.
The Arsenal skipper was also partly to blame for Barca's opening goal after a mis-placed backheel led to Lionel Messi putting the Catalan giants in front shortly before half time.
This mistake was totally out of character for Fabregas, who took to Twitter to apologise to Arsenal fans and shoulder the blame for the defeat.
He Tweeted: "Great support from the Arsenal fans. I take full blame for the result tonight. One of the worst moments of my life. I apologise."
Arsenal's task at the Nou Camp was made more difficult after the controversial sending off of Robin van Persie shortly after the visitors got themselves back on level terms.
The Dutchman received a second yellow card for taking a shot at goal after the whistle had already been blown for offside and - although Van Persie claimed he could not hear the whistle - the referee gave the 27-year-old his marching orders.
Arsenal were rightly aggrieved at the red card and Arsene Wenger was involved in an altercation with referee Massimo Busacca at full-time, while Jack Wilshere has also registered his displeasure at the official's decision.
The Arsenal midfielder followed his captain's lead by using Twitter to praise the travelling support, while sarcastically giving his verdict on Busacca's performance.
Wilshere wrote: "Arsenal fans great as always! Sorry about the result, good luck to Barca,great team! Oh yeah and the ref was good swell…."