NFL Confirms 49ERS’ Trent Williams Threw Closed-Fist Punch
Trent Williams threw a closed-fist punch during Sunday's game against the Arizona Cardinals
The incident occurred during a play in the third quarter
Williams was not penalized for the punch during the game
The NFL reviewed the incident and confirmed that Williams threw a punch
Williams could face a fine or suspension for the incident
The 49ers lost the game to the Cardinals 20-12
Williams has been a key player for the 49ers this season