Garcia has just as much got hold of Mullins as the other way around. He gave Mullins a crack in the back with his elbow deliberately IMO, Mullins shoved him in the neck and maybe cheek, Garcia went down as if he was shot. I'm convinced if he hadn't done that they wouldn't have got sent off. A very good instance of how play acting got someone sent off, and maybe it will be an example to others in future.