Postpublished at 22:16 British Summer Time 28 September 2016
A night to savour for Arsene Wenger and Theo Walcott.
Could they both have a big part to play for England in the future? Time will tell.
That's it from us. Until next time, cheerio.
Walcott heads Arsenal in front from Sanchez cross
Walcott fires Gunners' second after Sanchez pass
Latest: Celtic 3-3 Manchester City
Napoli, Barcelona & Bayern Munich also in action
Gary Rose
A night to savour for Arsene Wenger and Theo Walcott.
Could they both have a big part to play for England in the future? Time will tell.
That's it from us. Until next time, cheerio.
Celtic 3-3 Manchester City
Celtic 3-3 Manchester City
Celtic manager Brendan Rodgers on BT Sport: "I can't criticise the team, but there's always elements we can be better in. We were brilliant, the pressing and the energy. Every time we went forward we looked like we could score.
"Apart from the Barcelona game these players have been operating at a high level this season. Now, to do it against that team, it was a magnificent performance.
"How we defend is what we've been working on. All my teams have played with that intent. We have players that are developing and evolving all the time.
"Tonight, how they played and performed was top class. That will give them confidence going forward."
Arsene Wenger on England rumours: "I am focused 100% on Arsenal and my priority will always be to this club. Nothing will change on that."
Arsenal 2-0 Basel
Arsenal manager Arsene Wenger: "I would say the game was of quality and the win was comfortable. The only regret was that we did not score enough tonight considering what we created. Overall, some excellent football.
"Similarly to Saturday, the first half was good pace and second half was slower.
"The most important thing comes from the player Theo Walcott himself. Top quality people assess performances in an objective way. Then you have to respond to what you see. At the moment, he is doing that well.
"Alexis Sanchez had an extra game but unfortunately he could not score, it was one of those nights but his contribution was fantastic.
"We play Ludogorets twice now and if we come positive out of them, it will depend on our direct result against Paris St-Germain.
"We need to have the desire to improve and not be happy with what you have. You have to have the urgency and focus high. We have not won anything and the target is to get stronger."
Celtic 3-3 Manchester City
Manchester City manager Pep Guardiola on BT Sport: "It was difficult for us. I'm happy with the reaction from the players, it's not easy to score three goals away.
"I don't know how many the chances they had after the third goal. We should have won it.
"It's disappointing to concede at the beginning of each half, but that's football. I know how difficult it is here and they started so strong. The second goal was unlucky, and I don't remember any action for them after they scored their third goal.
"It's OK, it's one point, we didn't lose. You always learn. Now we have Barcelona, maybe the best team. We think about Spurs and, after the international break we'll think about that."
What will Pep make of that? You can chat about a blistering night of Champions League and send your questions to BBC World Service reporter John Bennett right now on our Facebook page.
Celtic 3-3 Manchester City
Barcelona edged Borussia Monchengladbach to stay top of Group C while Manchester City are second following that thrilling 3-3 draw with Celtic.
Arsenal 2-0 Basel
So Arsenal go top of Group A with four points from two games. PSG, who beat Ludogrets 3-1, are second.
#bbcfootball
Kumail Jaffer: Sterling has stepped up his game tenfold since Pep came in. A case of a 'fallen' star rising again?
Celtic 3-3 Manchester City
Celtic's Scott Sinclair on BT Sport: "The fans were right behind us and the atmosphere was unbelievable. That's what spurred us on. We kept going, going forward and creating chances.
"We keep improving. We learned from the Barcelona defeat. We took the negatives out of it and performed tonight."
Arsenal 2-0 Basel
Arsenal goalscorer Theo Walcott on BT Sport: "We were very professional today. The intensity was there from the start, it died off towards the end but you can understand that. It shows how far we have come, we need to move on now to Sunday.
"I am working hard, enjoying my football. I just try to improve everyday. Things are going well but this will all be forgotten about really, it is all about the next day.
"This team is very strong at the moment and we should be proud.
"Not many teams would like to play us, that is for sure. We cannot get ahead of ourselves, we have a lot to do and hopefully the past can change. We have so much experience in the Champions League realise how important that top spot is."
#bbcfootball
Alex: Very strong Sterling performance from Celtic tonight, definitely earned their goals & point, shows City aren't so big afterall.
Something in the air tonight? We've seen goals galore, fantastic football and now a dramatic finish in the Championship.
Newcastle were losing 3-2 to Norwich in the 94th minute but two quick-fire goals has seen them win 4-3.
Read more about it here. What a game!
The Xhaka brothers embrace after the full-time whistle.
There were wins for Barcelona and PSG tonight, but they were made to work for it by Ludogorets and Borussia Monchengladbach respectively. Barca and PSG both had to come from 1-0 down to win.
In group B, Napoli hammered Benfica 4-2, while Besiktas and Dynamo Kiev drew 1-1.
In the big game in Spain, Atletico Madrid sealed a repeat of last year's semi-final first leg, winning 1-0 against Bayern Munich, while Rostov and PSV drew 2-2 in Russia.
Celtic 3-3 Manchester City
Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live
It was fantastic. I enjoyed every second. Celtic hung on in there. Any England fans feeling down right now, cheer up - Sterling is phenomenal at the moment. It's a great game - neither side deserved to lose.
The Hamilton Kane: If you heard that 6 goals were scored at Celtic park, you'd have feared the worse. Great game, great effort.
Celtic 3-3 Manchester City
All over and all square in an enthralling game.
Manchester City remain unbeaten, but Pep Guardiola's 100% record is brought to an end.
Celtic 3-3 Manchester City
Hats off to Pep Guardiola. He has turned Raheem Sterling into a real player at Manchester City. He has been the visitor's best player in this game. Only a determined block by Scott Brown prevents the forward getting a decent-looking shot on target.
Into three minutes of stoppage time.