Mirror Sport understands, as reported by chief football writer John Cross, that the player, who has not been named, has expressed frustration that some people are being treated differently at Arsenal.
The confrontation took place during a tense team meeting.
Arteta is struggling to keep his head above water at Arsenal at the moment, with issues on and off Emirates’ pitch.
The Gunners have won back-to-back Premier League games against Chelsea and Brighton which relieved some of the stress.
But Arsenal have always had a hugely disappointing 2020 and are floundering in 13th place – nine points adrift of the top four places.
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Sead Kolasinac left Arsenal on a half-season loan on Thursday, with the defender joining Bundesliga club Schalke.
The left-back is the first player to come out at Arsenal, in what could be a busy month with Arteta looking to clear deadwood.
Arteta, who took the reins from Unai Emery in 2019, was very much on the chopping block ahead of Arsenal’s wins over Chelsea and Brighton.
After the 1-0 win over the Seagulls, the rejuvenated Arteta told reporters: “Any manager is tough enough given the context – it’s been a challenge.
“I have suffered at times, but I have great people around me.
“This period has been so important. We’ve had a tough week, it wasn’t so much about performance as it was about results but it takes results to start confidence.
“Now with two wins everyone is in a better mood. We managed to get through this period while maintaining our team spirit and our cohesion.
“It has been frustrating with the losses and it can affect the team, but I hope we can now move in a positive direction. ”
Is Mikel Arteta still at risk of being sacked at Arsenal? Give your opinion here.
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