Well basically, it's like playing a ball into an already covered player in order to draw a defender to that player, which then opens up some other spaces. For example, Higuain was coming really deep and there was a man pretty tight. But Bentancur was playing the ball to his feet anyway and Higuain was one touching it back. The result was Higuain's marker was sprinting to pressure Higuain and leaving some other space unoccupied.
It's like baiting defenders around the field which is something our CMs rarely do because it can backfire easily. It requires a lot of calm and technique.