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