The Gunners have released a statement after the refusal of the Skipper Laurent Koscielny to involve in the pre-season tour.
Arsenal's preparations for the new season have been thrown into disarray after Laurent Koscielny, the club captain, refused to travel to the United States for their pre-season tour.
Koscielny is in the final year of his contract at the Emirates and it's understood he wants to leave the club this summer.
An official statement on the club's website read: "We are very disappointed by Laurent's actions, which are against our clear instructions".
Koscielny is seemingly keen to make a move back to France, but as it stands, he's still one of the best defenders at Arsenal, and that could remain the case unless reinforcements are brought in.
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Lucas Torreira, Alex Iwobi, Mohamed Elneny and Matteo Guendouzi are notable absentees after playing in global tournaments with their respective countries this summer.
The 33-year-old is desperate to return to France this summer and is trying to force through a move, with Bordeaux interested in the experienced defender.
That could apply to a lot of things to be honest, but on this occasion, their anger is exclusively directed at the Arsenal captain Laurent Koscielny.
First up, the Gunners are to face MLS side Colorado Rapids on 15 July, followed by further tour games against Bayern Munich, Fiorentina and Real Madrid in Los Angeles, Charlotte and Washington DC respectively.
Saliba is viewed as a natural heir to Koscielny, but made only 18 appearances in Ligue 1 last season.