Dallas Cowboys star Trevon Diggs will miss this weekend's key matchup with the Commanders ... after his coach said he suffered an accident at his home on Thursday night.
Brian Schottenheimer announced the news to media members on Friday morning ... and while he didn't go into specifics about the matter, he did let journalists know the former All-Pro is in concussion protocol and won't be available for Sunday.
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Schottenheimer said he was "wishing [Diggs] well" .