Things have gone from bad to worse for the Arizona Cardinals -- Kyler Murray did, in fact, tear his ACL on "Monday Night Football" against the Patriots ... and the star quarterback's season is now over.
The signal caller suffered the non-contact injury on the third play of the game ... and ESPN's Adam Schefter confirmed the tough news just minutes ago.
The injury happened when Kyler escaped out of the pocket and went to plant his right foot before attempting a move on Pats' defender Matthew Judon.