Williams appeared to be knocked out on the play.
Officials said Barnett was not removed from the game because the hit was “not egregious enough.”
Twitter did not approve of the ruling:
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The Packers shared an early injury update on Williams from their Twitter account.
Williams gave a thumbs-up as he was wheeled off the field.
The 24-year-old played college football at BYU and was selected by Green Bay in the fourth round of the 2017 NFL Draft.