Arsenal manager Arsene Wenger on Giroud's injury:

"Olivier Giroud had surgery today. It went well but he will be out, for maybe top competition, until end of December beginning of Januray.

On whether he will try to sign a striker: "We will look around but we want quality. We have quality, we have Walcott coming back soon, Podolski, Campbell, Sanogo. To find players better than we have would be very difficult.

"Anytime you have a problem you can't always buy. I bought Sanchez to be a striker, Walcott can be a very good striker, Sanogo is a very good striker, Campbell if you ask him what he is he says a striker. All players of quality."

Arsenal striker Olivier Giroud had surgery on his ankle today and is expected to be out of action until the end of the year, manager Arsene Wenger confirms.

Relief will be the overriding feeling around Arsenal at the moment. Besiktas enjoyed more of the ball in a tense encounter but failed to hit the target in the entire match.

Arsenal midfielder Jack Wilshire speaking to Sky Sports after the game:

"It is tough against a good team with 10 man. They have good quality but we dug it out and showed good character. We had a few chances and normally at this level you get punished for that.

"After going down to 10 we are men happy with the 1-0. We showed great character, and the defence was brilliant, 17 years in Champions League shows what a big club we are.

"It is unthinkable not to be in the Champions League. We have to be at this level."

Image source, Getty Images

Ex-Arsenal defender Martin Keown
BBC Radio 5 live at Emirates Stadium

"All credit to Besiktas. Slaven Bilic and his team really tested Arsenal.

"It was a vital time for Alexis Sanchez to score a goal in the first half, when Arsenal were second best really.

"Arsenal played for 15 minutes down to ten men but did what they had to do.

"As an Arsenal fan, my heart was in the mouth a few times. The Wilshere penalty chance was 100% a penalty.

"They have scrapped through, but they are through, and Arsene Wenger has preserved his wonderful record."

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Arsenal's victory makes it four English clubs in the Champions League group stages.

Arsenal, Liverpool, Manchester City and Chelsea will find out their fate in the Champions League draw at 16:30 BST tomorrow. You can watch the draw live on Sportsday on the BBC Sport website.

A 17th consecutive season in the Champions League for Arsenal but, boy, were they made to work for their place.

Alexis Sanchez's first goal for the Gunners proves a very lucrative one as the home side thank the supporters for sticking by them.

What a battle that was.

Image source, Getty Images

Ex-Arsenal defender Martin Keown
BBC Radio 5 live at Emirates Stadium

On Demba Ba's missed late chance at the far post:

"It's a teasing cross that has eluded everybody and Demba Ba should be putting that in. In his defence, Mertesacker is the biggest man on the pitch. Bilic can't believe his striker has missed that."

Surely that will be that. The visitors chip the ball out for an Arsenal goal kick and the Gunners are almost there.

Arsenal hack clear as Besiktas keep attacking.

It is all over at St Andrew's. Substitute Emanuele Giaccherini slides a pass for Connor Wickham in the left side of the penalty area, and he fires across the Birmingham goalkeeper Colin Doyle.

Santi Cazorla disposses Atiba Hutchinson and Arsenal have the ball. Less than two minutes of injury time remaining.

Relief as Wojciech Szczesny hangs on to a cross from the right. Time is ticking for Besiktas as they attack again....

Late drama at Villa Park as League One Leyton Orient take the lead with only three minutes left through Romain Vincelot's header.

Villa reached the semi-finals in 2012-13 and have not gone out in the second round since 1991-92, but have only three minutes to save themselves.