Besiktas are in the midst of a mini-crisis after losing three of their last four games across all competitions culminating in a 4-2 home defeat against Genk in the Europa League.
Liverpool loanee Loris Karius has started each and every one of these games.
The German keeper has faced criticism but to be fair he has not been helped by the defence and the team, in general, have been underperforming.
Despite this the Aksam newspaper report that Besiktas head coach Senol Gunes is losing patience with the keeper.
Per the source, Gunes held a crisis meeting with Karius over his form.
The 25-year-old will be dropped for Tolga Zengin unless he improves his form.
The shot-stopper has also been issued a warning over his social media usage over the course of the Black Eagles poor run of form.
The management are concerned that Karius is being insensitive to the fans discontent over recent form and sending out the wrong message.
The Rizespor clash on Monday could prove a pivotal point for the loanee keeper.
Karius will start but it could be his last game as first-choice keeper unless he shows an improvement.
Tolga Zengin has recovered from injury and will be hoping to muscle in on Karius’ spot.
Karius has conceded 14 goals in nine appearances in all competitions for the Black Eagles, keeping just one clean sheet.