The First Four play-in games of the 2012 NCAA Tournament were fun and all, but Thursday is when the true March Madness begins. Brackets get validated and busted during the most torrid stretch of basketball the nation is treated to each year. They play 32 games over two days, and if you need to keep up with all of your own predictions, SB Nation has its own printable NCAA Bracket for you to use.

The No. 9 St. Louis Billikens aren't getting much love of hype due to their matchup with the media darling No. 8 Memphis Tigers, but there is a reason why they play the games. There is also a reason why it's nearly impossible to pull off a perfect bracket. Weird things can happen. Weird things will happen. Make sure you have a printable NCAA Bracket to scribble on when it all goes down.

For more on the 2012 NCAA Tournament bracket, stay with SB Nation's Selection Sunday StoryStream, and stick around SB Nation's NCAA Tournament hub for a complete printable NCAA Tournament bracket and tons of analysis on who was snubbed, who got the best bracket, and who will make it all the way to New Orleans and the Final Four.