Three things we learnt from Arsenal’s win over Manchester City

Arsenal's Chilean striker Alexis Sanchez (C) celebrates scoring their second goal with Arsenal's Brazilian defender Gabriel (L) during the FA Cup semi-final football match between Arsenal and Manchester City at Wembley stadium in London on April 23, 2017. / AFP PHOTO / Justin TALLIS / NOT FOR MARKETING OR ADVERTISING USE / RESTRICTED TO EDITORIAL USE JUSTIN TALLIS/AFP/Getty Images

Arsenal will play Chelsea in the final of the FA Cup after a hard fought victory against Manchester City.

The talking point of the game was not the fact that the Citizens dominated the first half of the match or Arsenal came from one goal down to knock out Guardiola’s men but Arsene Wenger’s tactics that involved playing three at the back against a much tougher opponent.

Aaron Ramsey lost the ball the in the 61st minutes to Yaya Toure, who found Sergio Aguerro that broke the deadlock right in the face of Cech who looked as if he was held back. However, the lead of the Citizens only lasted for nine minutes as Arsenal’s most fantastic player of the game Oxlade Chamberlain, who played as a wing back/forward assisted Nacho Monreal to a fine equaliser in the 70th minutes.

The game went into extra-time as both teams were unable to find breakthroughs but Chilean international Alexis Sanchez sent the Citizens away with his vital winning goal – Mesut Ozil had laid off a crossing that found a jaded looking Welbeck, who missed the glorious chance but thankfully Sanchez stole the ball before the defenses for Man City and shot the ball past Caballero.

Albeit the Gunners now have an opportunity to win a trophy this season, these are some talking points.

Oxlade Chamberlain improvement

Chamberlain was found all over the length and breadth of the right wing position. He combined very well with his attackers and midfielders. He was by far the best player on the pitch for Arsenal, it was his precise pull-out that found Nacho Monreal for Arsenal’s equaliser.

This term, he has played as a central midfielder and on those occasions, he’s come-off the games with stellar performances. He’s turning into a fine player and he’ll be a better player next season.

3-4-3 Formation is a good option

Fans and pundits called out Arsene Wenger when he made the Gunners to line-up in a 3-4-3 formation against Boro in the League last week. However, it paid off and even though Wenger had claimed he may have to change tactics, he stuck with three at the back today but for Cech’s failure to clean out Aguerro, Arsenal would have kept a clean sheet.

Part of Wenger’s undoing has been his inability to change and update his tactics. Conte, Allegri and other younger coaches have played with three at the back and it has paid off. Even if Wenger wants to continue with this formation, he has to still tweak his team a bit.

Sanchez should not be sold

Arsenal have stalled over contract talks with Alexis Sanchez with reports indicating that the player wants out after Arsenal’s season capitulated. Sanchez has scored 25 goals in all competitions for us this term, selling him will create a deep in the attack of Arsenal.

If Arsenal doesn’t qualify for Champions league but win the FA Cup, it may be a good reason for the Chilean to remain at the Emirates.