By Richard N. Velotta, Las Vegas Review-Journal

March Madness is upon us, another time of the year when people who almost never set foot inside a race and sports book become sports experts and serious gamblers.

It was only a month ago that twice-a-year bettors showed their expertise on Super Bowl Sunday.
 
But come this afternoon — now known as Selection Sunday — college basketball fans will be glued to their televisions to learn how a committee constructed the brackets for the 68-team NCAA Tournament that will last through April 3.

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