It had already been a rough start for TreVeyon Henderson.
And then he got injured.
The New England Patriots' rookie running back was coming off a massive game a week ago against Buffalo.
But everything changed for him in the second quarter on Sunday Night Football.
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Why isn't TreVeyon Henderson playing?
Henderson isn't playing because he left the game after a hard fall on the back of his head.
The rookie from Ohio State is being evaluated for a concussion.
The Patriots ruled him questionable to return.
Without Henderson, it's Rhamondre Stevenson getting pretty much all the work as opposed to the conceptual 50-50 split.
The Patriots also have veteran D'Ernest Johnson active as a RB on Sunday night.
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