Gunners thrashed Charlton 6-0 in their first behind closed doors friendly at the Emirates to get ready for action. But a second game against Championship side Brentford culminated in a defensive collapse and a surprise 3-2 defeat.
Fans were left worried after highlights of the game showed some lacklustre defending and costly mistakes in the game, which saw Mikel Arteta rotate his squad.
According to The Athletic, Arteta was left ‘angry’ after the game, and he reacted in a way to let people know he was upset and why.
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