March Madness live: 2021 NCAA Tournament basketball scores, bracket updates for Round 1 on Saturday

The opening day of the first round of the 2021 NCAA Tournament did not disappoint. There were upsets (the ninth No. 15 over No. 2 in tournament history), overtimes and plenty of excitement as March Madness officially introduced itself. Saturday sets up to be quite the day as well with the second half of Round 1 action going down.