Rivalries are a logical extension of sports. When you train your whole life to become the best at a particular event, you are bound to run into opposition. That opposition can take many forms.
It may be an ill-timed injury, or bad coaching or horrible strategy. But many times that opposition has a name and a face. It is the group of players standing on the other side of the field planning to ruin your best efforts.
When you take that kind of opposition and drop it into a microcosm of various circumstances, a rivalry is born. They can spring up just about anywhere.
A misunderstood phrase could raise the ire of a close-by competitor. A badly thrown ball can set off a chain of events and start a feud that would outlast the Hatfields and McCoys.
Rivalries are a special subsection of sports. The season of any sport is welcomed with open arms every year, but the rivalry game is circled on the calendar with black ink.
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