Visionhaus/Getty Images
Matteo Guendouzi was reportedly left out of Arsenal's 4-0 Premier League win over Newcastle United on Sunday following an argument with manager Mikel Arteta.
According to The Telegraph's Sam Dean, Guendouzi got into a "heated row" with the Spaniard and the coaching staff during their warm-weather training camp in Dubai.
It's said the clash started in training and continued at the team hotel.
Per Dean, after the win against Newcastle, Arteta said the player's behaviour and work in training were the reasons he was dropped:
The 20-year-old has been a regular fixture and a key part of Arsenal's midfield for the Gunners since his arrival from FC Lorient in 2018:
An all-action presence in the centre, he often drives the team forwards, and he puts in plenty of defensive work, too.