Why did Max knock Sergio out of the way and cause Sergio to drop his backpack?
Max knocked Sergio out of the way
We can see here that Max knocked Sergio out of the way and caused Sergio to drop his backpack because Max needed to make a phone call.
What is a knock out?
A strike to the head can render a person unconscious, which is known as a knock out (sometimes spelt "knockout"). A knockout happens when one fighter throws a punch or strike to the other opponent's head, rendering them unconscious and unable to continue the battle, as in sports like boxing or mixed martial arts.
A knockout can happen for a number of reasons outside of athletics, such as physical injury or brain-related illnesses.
Why did Max knock Sergio out of the way and cause Sergio to drop his backpack? Max needed to make a phone call.