6 matches in a row without winning is quite an unusual streak for the Gunners, who are used to better times. These two players have always been one step ahead of it and so they are not too comfortable with the situation.
The aforementioned source states that both players are now in contact with other clubs and will leave if Emery stays. Some parts of the squad don't like Emery's way of doing things and this could be the consequence.
The transfer market opens in January and that's when this information will be sped up. The Frenchman and the Gabonese could begin to finalise conversations to leave Arsenal and the squad would break.
A slip has already come to light that can prove that this information is true. In any case, it is up to Emery to turn things around, win the confidence of his players and try to get Arsenal out of mediocrity in the Premier League.