The NFL announced Monday that New England Patriots tight end Rob Gronkowski is suspended one game for violating the league’s unnecessary roughness rules.

Gronkowski will appeal the suspension, a source told ESPN’s Adam Schefter. If Gronkowski doesn’t win his appeal, he’ll be suspended for Week 14 against the Miami Dolphins.

Gronkowski’s violation of the NFL’s rules came on a late hit on Buffalo Bills cornerback Tre’Davious White late in the Patriots’ 23-3 win Sunday.