Photo: Aaron Ramsey sends message to Laurent Koscielny ahead of Man Utd v Arsenal

Aaron Ramsey shared a private joke with Laurent Koscielny on social media ahead of Arsenal’s trip to Manchester United on Sunday.

The Gunners succumbed to a disappointing 2-0 loss to Barcelona in the first leg of their Champions League last-16 clash at the Emirates Stadium on Tuesday night.

Arsenal have been in impressive form in the Premier League in recent weeks and the north London side were 2-1 winners against leaders Leicester City in their last top-flight game at The Emirates.

While Arsenal were undoubtedly disappointed with their Champions League setback, Ramsey appeared to be in an upbeat mood as he posted a photo from training ahead of Sunday’s clash at Old Trafford.

Ramsey wrote on his Instagram page: “What was the score last night @koscielny_official6?! Looking forward to another big game tomorrow #AFC”

Arsenal are in third place and two points behind Premier League leaders Leicester.

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Arsene Wenger’s side host Swansea City at The Emirates on Wednesday night before making the short trip to bitter rivals Tottenham Hotspur next Saturday.