Think of it like animal arm wrestling — a short, mostly harmless physical contest to determine who is stronger. (dogcare.dailypuppy.com)
In any species where fighting occurs, experience of physical contests may influence mothers» reproductive decisions and alter the number and health of their offspring, the team says. (sciencedaily.com)
I don't see Zlatan as being fundamentally different from David Villa; he won't win physical contests. (sbnation.com)