The Egypt international has only made one Premier League appearance so far this season after coming off the bench in the 5-0 humiliation that Arsenal suffered at the hands of Manchester City, so it will not come as a surprise that Elneny is considering a move away.
The 29-year-old is in the final year of his contract at Arsenal, increasing the likelihood that he will be pushing for a move in January or else on a free transfer at the end of his deal with the Gunners.
According to a report from Fanatik, Elneny has agreed terms ahead of a move to Galatasaray in January, with the Turkish club still having to agree on terms with Arsenal.
Arsenal were fearing the possibility of losing him and Thomas Partey for the African Cup of Nations, but they will now have to shift their focus to finding a replacement for him.
While Elneny featured regularly for Arsenal last season, the arrival of Albert Sambi Lokonga has hindered his chances to get in the squad, with Partey's rise in form also keeping him out of the squad.
Elneny already had an experience playing in Turkey, when he spent a season out on loan with Galatasaray's rivals Besiktas, playing in 36 games for them.
The Egyptian arrived at Arsenal from FC Basel in 2016, and since then he has been in and out of the side due to the different managers that have led the side, falling in and out of favour under Arsene Wenger, Unai Emery and now Mikel Arteta.