The 28-year-old has two years left on his contract and his future at the club may depend on how Arsenal handle the situation.

The Frenchman has been struggling for form this season and appears to be adamant that he wants to play in the Champions League while the Gunners sit in ninth place in the Premier League table.

Arsenal have warned their players about the use of nitrous oxide after Mesut Ozil, Matteo Guendouzi, Pierre-Emerick Aubameyang and Sead Kolasinac were seen attending a champagne and vodka party in a London nightclub two years ago.

Some of them appeared to have passed out after inhaling laughing gas at the club just days before the start of the new Premier League season and so the hierarchy reminded them of their “responsibilities”.