NCAA Tournament officially begins Tuesday and Wednesday with First Four action followed by first- and second-round games on Thursday and Friday as part of a rollercoaster opening week that will see the 68-team field quickly shrink to a Sweet 16 in the span of six days.

In the hours that follow the unveiling of the men's NCAA Tournament bracket, college basketball fans around the country — die-hard and first-time viewers alike — will begin analyzing the field and making their picks on who will cut down the nets in San Antonio.