March Madness 2021: Got your bracket ready for Selection Sunday?

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March Madness, the 2021 NCAA men’s basketball tournament, tips off at 6 p.m. with the Selection Sunday show, which will determine the 68 teams that will vie for this year’s championship April 5.

But before the teams take the court, you’ll need your bracket.

NCAA bracket

There are four days to fill out brackets after the teams are picked and before tournament play starts.

Here are the key tournament dates:

March 18: First Four

March 19-20: First round

March 21-22: Second round

March 27-28: Sweet 16

March 29-30: Elite Eight

April 3: Final Four

April 5: Championship