Man Utd fans react to Kalidou Koulibaly's first-period performance against Arsenal

Napoli defender Kalidou Koulibaly will be at the top of his list of Manchester United players before the transfer window.

The Red Devils are known to be on the market for central defensive reinforcements and Koulibaly is a long-term target.

They would be willing to spend their money trying to land the big defender – and watch United fans begging him to see him at Old Trafford next season.

Koulibaly made an impressive first half in the first leg of the first leg against Arsenal in Europa League, despite the fact that his team found themselves in the quarter-finals of the competition at the break.

He could do nothing of the excellent first match of Alexandre Lacazette on free kick which placed the Gunners 3-0 in total.

After a shaky match, the defender broke several attacks and even launched counterattack opportunities as he showed his ability to play from behind.

This led United fans to hail him as a key target for Ole Gunnar Solskjaer this summer, as they watched with wonder his talent.

One fan said that they would "spend all the money on him", others adding that he was "so good" and declaring that they "needed him so much".

Another fan of the Red Devils said that "everything Napoleon wants from Koulibaly, Napoli throws them literally on them" because it has been called "Top 10 CB of the world".

Some were wondering why he was their main goal after a difficult start to the first leg at Emirates, but United's supporters felt that he had managed to be forgiven and rebadessed their opinions.

He is about to generate interest and collect huge fees while Naples seeks to earn about 110 million pounds for his star man.