Why Dre Greenlaw was ejected from Seahawks-49ers after confrontation with helmet-less Ernest Jones

Key points

• San Francisco 49ers linebacker Dre Greenlaw was ejected from the first half of his team's game against the Seattle Seahawks after headbutting Seattle linebacker Ernest Jones on the sideline. Greenlaw was first penalised in the second quarter for a late hit on Seahawks quarterback Sam Darnold.
• The ejection followed as the Seahawks bench moved toward Greenlaw to defend Darnold. The NFL reportedly reviewed the replay and told officials to remove Greenlaw under a new rule allowing ejections for non-football acts.
• The 49ers must now play the road game without one of their starting linebackers.