MANCHESTER CITY icon Sergio Aguero couldn’t help but applaud Manchester United’s second goal in the FA Cup final.

The Argentine striker was left impressed when Kobbie Mainoo finished off a delightful move for the Red Devils to put them 2-0 up before half-time against neighbours Man City.

Sergio Aguero was watching the FA Cup on a livestream

The former Man City star put his head in his hands when Kobbie Mainoo doubled Man Utd’s lead

He quickly began to applaud the goal and explained he had no choice because of how good it was

Aguero, who won the Premier League five times with City, sat down to watch the FA Cup final on a livestream with his fans watching along with him.

And the 35-year-old was impressed by what he was seeing from his old rivals as United shocked City with a first half blitz.

Aguero was particularly taken aback by Kobbie Mainoo’s goal, which put Man Utd two goals to the good before half time.

The move saw Marcus Rashford ping a cross-field pass to Alejandro Garncho before the ball was worked into Bruno Fernandes who brilliantly teed up Mainoo to slot his shot past Stefan Ortega.

Kobbie Mainoo tucked his chance away superbly

And the classy combination had Aguero clapping, despite being a Man City legend and seeing his old side lose their grip on a domestic double.

The 101-time Argentina international initially put his head in his hands as he saw the ball hit the back of the net, but quickly began to clap afterwards as his appreciation for United’s move became evident.

He said: “I have to applaud United’s goal. I don’t have any other option than to applaud. In reality, it’s impressive.”

Mainoo’s goal added to the opener that Garnacho had scored for United earlier in the first half following a howler at the back involving Josko Gvardiol and Ortega.

Mainoo and Garnacho became the first teenagers to score in an FA Cup final for over 20 years – with fellow Man Utd star Cristiano Ronaldo the last to do so back in the 2004 final.

Aguero had to sit through a second half where United dug their heels in and made it difficult for City to try and come back into the game.

Jeremy Doku’s late goal was insufficient to give City any hope of winning the match; Manchester United won 2-1 to win the FA Cup and reclaim some pride in their hometown.

Among the players coached by the Dutchman, Erik ten Hag’s team gave one of their greatest performances.

Even if Ten Hag’s strategies worked this time and brought him his second trophy in two years as the Red Devils’ manager, there are still rumors circulating that he would lose his job.

When asked about his future after the game, the 54-year-old responded in a combative manner.

He said: “Two trophies in two seasons and three finals. That’s not bad.

“If they don’t want me any more I go somewhere else to win trophies. That is what I do.”