Ilkay Gundogan's brace helps Manchester City beat Barcelona in Champions League

English football powerhouse Manchester City seeked revenge on Spanish giants Barcelona as Ilkay Gundogan scored twice in a 3-1 win in the Champions League, while Arsenal were one of four sides to secure progress to the last 16.

Pep Guardiola's side had lost 4-0 away in Barcelona two weeks ago but they showed tremendous character to come from a goal down and beat the Spanish champions 3-1 at the Etihad Stadium on Tuesday.

The inevitable Lionel Messi put the visitors in front at the end of a stunning breakaway with his 90th Champions League goal.

However, City pounced on a Sergi Roberto mistake as RaheemSterling set up Gundogan to equalise six minutes beforehalf-time.

A Kevin De Bruyne free-kick gave City the lead six minutes into the second half and, although Andre Gomes rattled the bar for the visitors, the Premier League side were on top and they secured the victory thanks to Germany midfielder Gundogan's second of the night.

"Today is a good step. We play against a great team and we compete. Now they will realise, 'Wow, we won against the best team,'" said Guardiola.

Barcelona remain top of Group C and need only draw away to Celtic in their next game to progress, while City now know awin away to Borussia Moenchengladbach next time out will takethem through.

"It's a shame that after the error we made for the firstgoal, from them on we had a bad time," said Barcelona coachLuis Enrique.

In Germany, Celtic kept their hopes of at least snatching third place and a Europa League spot alive as they came from behind to draw 1-1 with Gladbach at Borussia-Park.

Lars Stindl put the hosts ahead in the first half but Moussa Dembele levelled from the spot on 76 minutes with apenalty after he had been fouled by Julian Korb, who was sentoff.

Mesut Ozil scored a stunning winner as Arsenal fought backfrom two goals down to beat Ludogorets 3-2 in Sofia and securetheir place in the last 16 for the 17th season in succession.

Jonathan Cafu put the Bulgarian champions ahead and thenset up Claudiu Keseru to make it 2-0 to Ludogorets insidequarter of an hour. However, Granit Xhaka and Olivier Giroud scored to haulthe Gunners back level before the break, before Ozil's finesolo effort won it two minutes from time. The German ran through, chipped goalkeeper Milan Borjanand cut inside two defenders before slotting in from close range. 

Arsene Wenger's side are through from Group A with two games to spare, as are Paris Saint-Germain, who won 2-1 awayto Basel in Switzerland with a dramatic late winner of their own.     

Blaise Matuidi's opener for the French champions was cancelled out when a Luca Zuffi cross sailed in, but ThomasMeunier volleyed in a stunning goal to win it at the death. Last season's runners-up Atletico Madrid and German champions Bayern Munich also qualified for the last 16 from Group D.