By Dominic Toner

Laurent Koscielny completed 90 minutes in the 2-1 victory against Middlesbrough on Monday night – and the club’s supporters were critical of his performance on Twitter.

The 31-year-old defender is an important member of the Gunners first team, but was blamed for his involvement in Alvaro Negrado’s goal.

The north London club had taken the lead through a first-half Alexis Sanchez free-kick, but were pegged back in the 50th minute by the hosts.

Negrado managed to find space in the penalty area and peeled off the back of Koscielny to score a headed goal.

Midfielder Mesut Ozil managed to restore his side’s lead with a half volley in the penalty area and that proved to be decisive.

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Arsenal fans picked out centre-back Koscielny for his display against Boro and feel that he was at fault for Boro’s goal.

Here is a selection of their messages on Twitter:

https://twitter.com/LinkUpPlay/status/854064133595176961

https://twitter.com/Arvin_TR/status/854063806644965377

Arsenal managed to bounce back from their embarassing 3-0 defeat against Crystal Palace by returning to winning ways.

They moved up to sixth in the league table and are still in the hunt to finish in the Champions League places.

Wenger’s side are now seven points adrift of Manchester City in fourth, but do have a game in hand to play.

The gunners have never finished outside of the top four under Wenger’s tenure, but that is under serious threat of changing.

Arsenal will now turn their attention to their FA Cup semi-final against Man City, before a home match against Leicester in the league.

In other Arsenal news, Wenger has issued a warning to the club’s 22-year-old.

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