Arsenal make a change as Mikel Arteta comes off for Mathieu Flamini.

Arteta hands the captain's armband over to Per Mertesacker.

Twenty-three minutes to see this out now.

Antoine V:, external People saying sack Wenger and he'd be gone if not for Sanchez... Remind me, who brought the amazing Sanchez to Arsenal?

Benhard Naweseb:, external The reason why Arsenal will win tonight is because Wenger has been out of his seat a few times already. Fire in the belly.

Luke:, external South American class has taken over the PL in the striking department. Sanchez, Aguero and Costa are miles ahead of anyone

So if both games end now, Arsenal can still finish top of Group D if both results go their way in two weeks' time. If the Gunners beat Galatasaray in Turkey, and Borussia Dortmund lose at home to Anderlecht, Arsenal will win the group.

If Arsenal win this game 3-0, then even a Dortmund draw on the final day would see the Gunners through if they win in Istanbul.

James William Dingle:, external Question: Does Alexis score rubbish scrappy goals, or just great ones?!

Mathew Brown:, external SANCHEZZZZZ! A class apart.

Kerry Peter Parvin:, external What a strike by Sanchez!!! Pick that one out!!!

And Jurgen Klopp makes a double change up front, almost immediately. Former Manchester United player Shinji Kagawa and Adrian Ramos come on for Ciro Immobile and Pierre-Emerick Aubameyang.

It just hasn't worked today for the Bundesliga strugglers.

Is that the Gunners home and dry? Never count on it against a Jurgen Klopp side, even one that doesn't need to win.

Having said that, as things stand this lets the Gunners back in the race for top spot and potentially an easier last-16 tie.

MuLoRm:, external Sanchez is PURE QUALITY!

Arsenal legend Ian Wright was talking to BBC Radio 5 live this week about Sanchez and said: "They are mid-table without him."

Image source, Reuters

Great goal by a great player. Santi Cazorla plays the ball forward to Alexis Sanchez, Arsenal's standout player this season, and he cuts inside before curling a fantastic effort from 20 yards past Roman Weidenfeller into the corner of the net.

Image source, AP

Jigga T:, external Yaya Sanogo people were hating on him. Good for you. Score a hat-rick to shut them up.

Kurt Booth:, external Sanogo scoring, Arsenal leading in Europe...all we need now is fire, brimstone and four horsemen, and all the pieces fit!

Goonerama:, external Ramsey still bombing forward + Arteta on a yellow = worrying.

Juventus have put themselves in pole position to join Atletico Madrid from Group A in the knockout stages. Fernando Llorente has burst through the Malmo defence from Claudio Marchisio's pass four minutes into the second half to break the deadlock in Sweden. Malmo will be eliminated as things stand.

Image source, AFP

Almost a fantastic goal by Alex Oxlade-Chamberlain, the Arsenal midfielder controls the ball well 20 yards from goal and he half-volleys a near-perfect strike on his laces which hits the crossbar. Keeper Roman Weidenfeller was nowhere near it.

Image source, PA

Image source, PA

Borussia Dortmund are trying to get the ball forward to pacy striker Pierre-Emerick Aubameyang at every opportunity now, but he's just snuffed out by a Gunners defender on a couple of opportunities.

The home side's defence will have to remain alert.

Phil: We really need a proven premier league frontman. How about a certain Theo Walcott. Play him through the middle and see the goals come.

On one of the Gunners' first runs forward in the second half, Alexis Sanchez takes the ball on 40 yards from goal, charges past a couple of Borussia Dortmund defenders and then has a powerful shot saved down low by Roman Weidenfeller.

Image source, EPA

Borussia Dortmund have had most of the ball in the second half, practically all of it, it feels.

A couple of crosses into the box are cleared and then Ctrl+v, sorry Henrikh Mkhitaryan, has a shot from just outside the box that is straight at Emiliano Martinez.

Image source, EPA

Between Bayern Munich taking one of their world-class players every summer, and Marco Reus being injured, Borussia Dortmund haven't looked the side we have all raved about in previous seasons.

Borussia Dortmund get the second half going. They need a draw tonight to clinch top spot in the group.

Image source, AP

Players are coming out for the second half. I can't imagine either side will have made a change.

'One minute to kick-off' says an informative sign at the Emirates.

Gary Lineker
BBC Sport

Ancelotti says when Cristiano Ronaldo starts it's the equivalent of a one goal start. Correct again, Carlo.