The Poland international endured a difficult evening at Wembley yesterday, making a succession of mistakes, culminating in his rash dart out of the penalty area, gifting Didier Drogba Chelsea's FA Cup semi-final winner.

It was certainly not the ideal way for Fabianski to celebrate his 24th birthday, or offer confidence about the future given Manuel Almunia's ankle injury is set to keep him out of the Champions League semi-final first leg against Manchester United at Old Trafford on April 29.

Yet Wenger claims his faith in Fabianksi is undiminished.

And he is confident the player will go on to reach the very top of his profession.

"It would be unfair to put too much responsibility for this defeat on Fabianski," he said.

"I do not want to speak too much about what he has done, I just want to see him recover because I firmly believe he will be one of the best goalkeepers in the world.

"He has the talent. He is brave, he is intelligent and technically he is very good.

"He was not at his best yesterday but we have to accept that. It can happen to anyone, just as it happened to Petr Cech on Tuesday."

Cech is probably not the best example to use given he still looked fragile yesterday.

However, Wenger must try to rally his troops because the Gunners still have plenty to play for over the next few weeks.

Although fourth place is just about secure following Aston Villa's woeful recent run, Arsenal can hardly throw in the towel just yet given the enormity of their two-legged tussle to decide who will tackle Chelsea or Barcelona in Rome on May 27.

"The season is not petering out," declared Wenger.

"We are in the last four in Europe, we have just played in the semi-final of the FA Cup and we still have to get as close as possible in the Premier League.

"We dropped out of things last season but I believe we have shown we are mentally strong in adversity this season.

"Now we have a good opportunity to show it."

Robin van Persie is a major doubt for Tuesday's trip to Liverpool after aggravating a groin injury but Wenger intends to field a strong side in a match that could have major repercussions in the Premier League title race, Arsenal knowing the last vestiges of their flickering challenge will be extinguished if they do not win.

Alexandre Song, Samir Nasri and Andrey Arshavin, who was controversially left out yesterday, are all set to return at Anfield.

But the prospect of gaining revenge over Chelsea is starting to take hold in the back of Wenger's mind, the Frenchman adamant his team have the necessary strength and power to beat their London rivals if they go head to head in the Champions League Final.

"I would love to play Chelsea again," said Wenger.

"We could take our revenge because I believe we are maturing well.

"We were a bit jaded yesterday and I felt we were a little bit unlucky.

"But we have already beaten them once and we can do it again, although we have another little team to play first in Manchester United."