This is why you have to trust your assistant referee. Cause at the moment of contact, only the assistant referee is looking across the field and sees the player in red keeping the attacker and white in the middle of the field on side. And by the time everyone looks up to see, oh, balls going long, where’s the attacker? It’s going to look like he’s in an offside position, but he’s not. He’s played perfectly onside by the red defender.