The Sun says the fuming frontman let rip at team-mates after Wednesday's humiliating 5-1 Champions League thrashing by Bayern Munich.
Angry Gunners No2 Steve Bould hurled a water bottle against a wall as players blamed each other for their shambolic defeat.
And fans fought among themselves in the stands over manager Arsene Wenger's future.
Sanchez flew out of Heathrow yesterday and is looking at his options — despite Arsenal's offer of a new deal.
Paris Saint-Germain and Juventus are interested.