Instinct Theory Of Aggression
The instinct theory of aggression, as put forward by Sigmund Freud, posits that aggression is an innate biological drive that is in the same category as the drives that are related to sex or hunger.
They are instinctual and automatic, we are born with these drives and must adapt as a means to control them. Aggression is used as a means of maintaining and defending territory: basically as a means of survival both in humans and in animals. Human society regards these traits as elements that need to be controlled and channeled for the good of society so that we don't descend into animalistic chaos. One controversial hypothesis suggests that sports serve as an outlet for these drives.