The flight back from Baku will have felt a lot longer than it already was following Arsenal's abysmal performance against Chelsea in the Europa League.

If they were any positives at all to take from the game, it was the fact that it highlighted that Unai Emery still has plenty of work left to do with the group of players he has available and an abundant of changes are going to have to be made in the summer transfer window.

Almost every single player on the pitch did not appear to come away from the game with any integrity as it was truly embarrassing to see the Blues maul the red part of London with such ease, especially after a first-half performance that offered so much promise.

One area of the squad that needs to be addressed and was further highlighted on Wednesday night was on the left of the pitch. The Gunners, as bad as they have been defensively, also appear to lack real quality going forward and could make do with adding a top-drawer winger to their ranks in the transfer window.

And, according to reports emerging from one Argentinian media outlet, it would seem Emery could have the perfect candidate on his radar to help improve Arsenal.

AS Argentina are claiming the Gunners are interested in signing Atalanta United's Ezequiel Barco; as are Benfica.

The winger has been in fine form for the MLS outfit since Miguel Almiron's departure from the club in January and has been impressive in what has been a difficult season for the defending champions - although with Frank de Boer in charge, is there any real surprise?

Valued at £7.2million by Transfermarkt, the exciting South American prospect has proved his worth in front of goal for Atalanta this season, having netted four goals in his eight matches so far, whilst providing his team-mates with one assist.

Barco, who is currently with the Argentina Under-20 squad for their World Cup campaign in Poland, has also continued that fine form with his nation, as he netted twice in their opener against South Africa's Under-20 side and provided an assist in their win against Portugal Under-20s.

He may have been a natural number 10 during his time at Independiente, however, he also learnt to play in a wide position and appears to have adapted well to the role as time has gone by. The 20-year-old loves to dribble with the ball at his feet and take on his defender, whilst he is incredibly creative and has an eye for a pass.

Obviously, Barco is a young prospect still and is far from the finished article, however, he has all the potential to make a name for himself in European football.

Emery could be the perfect manager to develop and guide him as he looks to take his career to new heights, whilst he has all the ability to play a key role for Arsenal if he were to join them.

Arsenal fans, what do you make of Barco? Do you think he would be perfect for the club and help you improve on the left? Let us know your thoughts below!