• Manchester City defeated Borussia Monchengladbach 2-1 to put their Champions League campaign back on track
  • England No 1 Joe Hart saved a penalty from Rafael in the opening half
  • Officials failed to spot that Martín Demichelis’s shot had crossed the line
  • Nicolas Otamendi made amends for the penalty by netting City’s equaliser
  • Talisman Sergio Aguero scored a last minute winner from the penalty spot 

Chris Wheeler for the Daily Mail

Manchester City rescued their Champions League campaign with a late penalty to defeat Borussia Monchengladbach 2-1 in Germany.

Joe Hart was in inspired form, making a succession of saves including a first half penalty, before Sergio Aguero stepped up to score the winner from the spot in the final minute of normal time.

Here, Sportsmail’s Chris Wheeler reveals the five things he learned from the game…

Sergio Aguero celebartes scoring a last minute winner in City's 2-1 defeat of Borussia Monchengladbach

Sergio Aguero celebartes scoring a last minute winner in City’s 2-1 defeat of Borussia Monchengladbach

Manchester City players celebrate after rescuing their Champions League campaign at the death

Manchester City players celebrate after rescuing their Champions League campaign at the death

JOE’S GOT BOTTLE

Joe Hart had one of those nights when he did everything to frustrate his opponents, by fair means or foul.

The England goalkeeper saved Raffael’s penalty in the 20th minute with a fantastic save, having kept the Brazilian waiting by disappearing behind his goal to take a drink from his water bottle.

Hart later revealed that he had done his homework on Raffael with City’s video analysis staff in the build-up to the game before facing him from 12 yards.

‘No stone is unturned,’ he said. ‘I’ve seen a lot of penalties from a lot of players – we have good guys in the analysis department.’ 

Joe Hart returned to Manchester City's goal in imperious form as he saved a penalty from Raffael

Joe Hart returned to Manchester City’s goal in imperious form as he saved a penalty from Raffael

The England goalkeeper makes one of a series of superb saves during the game at Bourussia-Park

The England goalkeeper makes one of a series of superb saves during the game at Bourussia-Park

AGUER-OOOOOOHH!

Sergio Aguero eventually got his goal but the usually deadly Argentine appears to have mislaid his shooting boots this season.

Although his 90th-minute was his third goal in 10 games, it was the second to come from the penalty spot and means that Aguero has scored just once from open play – against Chelsea last month when he should have had a hatful.

Last season’s Premier League Golden Boot winner squandered his fair share of chances here again. One close-range effort at the back post was quite brilliantly saved by Yann Sommer but should have been converted, and Aguero also failed to beat the Borussia keeper when sent clear by Hart moments after his penalty save.

He held his nerve from the spot in the 90th minute but City badly need him firing again. 

Argentina ace Aguero stepped up to score the late winner from the spot with only his third goal this season

Argentina ace Aguero stepped up to score the late winner from the spot with only his third goal this season

The Argentina international chose to wear a pair of different color - orange and blue - boots in Germany

The Argentina international chose to wear a pair of different color – orange and blue – boots in Germany

FLAW-SOME FOURSOME 

City supporters have waited more than a month to see their £165million strikeforce play together, and there was significant room for improvement.

David Silva returned from injury to start alongside Kevin De Bruyne, Raheem Sterling and Aguero, but they took a long time to get going.

De Bruyne, who was returning to Germany after completing a £54m move from Wolfsburg, was also guilty of an embarrassing air shot on the edge of the Borussia box and the home side almost scored on the break.

‘This was our worst match this season,’ admitted De Bruyne. ‘We only played the last half hour, and in the first hour it was very difficult for us.’ 

Kevin De Bruyne (left) joined Raheem Sterling, David Silva and Aguero in  City's £165m forward line up

Kevin De Bruyne (left) joined Raheem Sterling, David Silva and Aguero in City’s £165m forward line up

Silva, known as 'Merlin' by his team-mates, was back in the starting XI after a spell on the sidelines

Silva, known as ‘Merlin’ by his team-mates, was back in the starting XI after a spell on the sidelines

COME BACK KOMPANY

City’s commitment to attacking football made for a wonderfully open game but it leaves them vulnerable at the back – particularly so when Vincent Kompany is not around to shore things up.

The City skipper has not played since he injuring his calf in the opening Group D defeat to Juventus, having led his team to five successive clean sheets at the start of the season.

Manuel Pellegrini’s side have shipped eight goals in four games without Kompany, and could have let in even more here but for Hart’s heroics.

They were wide open at times, not least when Lars Stindl struck. The unconvincing Otamendi gave away one penalty and Fernandinho almost conceded another.

Kompany’s return cannot come soon enough. 

Despite scoring Manchester City's equaliser, Nicolas Otamendi has failed to impress in defence

Despite scoring Manchester City’s equaliser, Nicolas Otamendi has failed to impress in defence

Manchester City lynchpin Fernandinho (left) was fortunate not to concede a penalty for a tackle on Lars Strindl

Manchester City lynchpin Fernandinho (left) was fortunate not to concede a penalty for a tackle on Lars Strindl

TURNING A BLIND EYE

The referee might have been a bloke called Turpin but that was no reason to almost rob City of their equaliser at Borussia-Park.

It was awarded in the end but only but only because Nicolas Otamendi volleyed home after teammate Martin Demichelis had been denied a legitimate goal.

The extra official behind the goal failed to spot that Demichelis had turned the ball over the line with his knee, and not for the first time we were left wondering what purpose they actually serve.

The Goal Decision System has worked perfectly well without controversy in the Premier League since its introduction two years ago, and yet Europe’s premier competition continues to turn a blind eye to goal-line technology.

Even though Michel Platini has more important things on his mind at the moment, the UEFA president might want to reconsider that decision.

The fourth official failed to spot that Martín Demichelis' shot had crossed the line before Otamendi's equaliser

The fourth official failed to spot that Martín Demichelis’ shot had crossed the line before Otamendi’s equaliser

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