A substitute throws an object onto the field of play and it interferes with play, an opponent or match official. How is play restarted?

THE DECISION

Play is restarted with a direct free kick (or penalty kick) where the object interfered with play or struck or would have struck the opponent, match official or the ball. The substitute should be cautioned (yellow card, YC) or sent off (red card, RC) depending on the severity of the offence.