[5] During the start of the 2021 season, injuries to the linebacker position made it possible for Watts to switch from receiver to defense.

[6] Watts made his first defensive contribution against Virginia Tech, making three total tackles (one solo), in route to a 32–29 win.

[8] Watts played in 13 games with four starts in 2022 finishing the season with 39 total tackles (24 solo) and four pass deflections.

[10] In Week 7, Watts intercepted Caleb Williams on the first series of the game to help set up Notre Dame.

[12] Watts finished the regular season with 47 total tackles (28 solo), four pass breakups, a forced fumble, and a defensive touchdown.

[14] Ahead of the 2024 season, Watts was named preseason All-American by the Associated Press, ESPN, The Sporting News, and USA Today.

15 Louisville, he returned an interception 34 yards and forced a quarterback hurry that made the Cardinals turn the ball over on downs in the fourth quarter, sealing the 31–24 victory.

On the next drive, Watts picked off Maiava at the goal line, returning it for 100 yards and breaking Gray's record to help Notre Dame win 49–35.

[19] After losing to Northern Illinois on September 7, Notre Dame won 10 straight games to make the College Football Playoff as the No.