Injured captain Cesc Fabregas has insisted Arsenal still have 'great potential' despite their Carling Cup loss.
The Gunners were denied their first major trophy in six years as Obafemi Martins capitalised on a defensive mistake to clinch a 2-1 victory for Birmingham at Wembley on Sunday.
Fabregas was, along with England winger Theo Walcott, not fit to play, but still maintains there is a lot more to come from Arsene Wenger's young squad.
The Gunners tackle Leyton Orient in their FA Cup fifth-round replay at Emirates Stadium on Wednesday night, are second in the Premier League and will take a 2-1 lead to Barcelona for the second leg of their Champions League tie on 8th March.
Speaking on Twitter, Fabregas said: "Congratulations to Birmingham.This team has great potential and there are still great targets to play for this season. Thanks for your support."
Zigic had headed Birmingham in front on 28 minutes before Robin van Persie equalised with a fine volley 11 minutes later.
The Dutch striker was later substituted with a knee injury which will be assessed on Monday before a decision is taken on his availability for the Barca clash.
"I am very sorry that we could not bring CC [Carling Cup] back to north London," Van Persie said. "Thanks for your support today. Sorry again."
Jack Wilshere also offered words of encouragement for the Arsenal supporters on his Twitter account.
The England midfielder, 19, wrote: "All I can say is sorry to the fans. It hurts a lot, I know, but we must all stick together. Still in 2 other comps! [sic] We have to move on. Sorry."
However, full-back Bacary Sagna could not hide his disappointment, simply saying: "Just feel ashamed. Sorry."
Who was Birmingham's man of the match in the Carling Cup final?