He played college football for the Wisconsin Badgers, and was selected by the San Diego Chargers in the sixth round of the 2016 NFL draft.

[5] He was part of the offense that helped running back Melvin Gordon amass record-breaking rushing yards during his Badger career.

[15] In the 2019 season, Watt appeared in all 16 games and recorded a rushing touchdown against the Jacksonville Jaguars.

[19] In Week 2, against the Denver Broncos, Watt blocked a punt that resulted in a safety.

[20] On December 21, 2020, he was knocked out as a gunner as he was concussed after being blocked into former Badgers teammate Alex Erickson on a punt return.

[21] After spending the whole season mainly on a special teams role with zero yards on offense, Watt ran his first rushing plays with the Steelers in the Wild Card Round against the Cleveland Browns.

[24] During Week 8 of the 2022 season at the Philadelphia Eagles, Watt caught a one-yard touchdown on a throw from wide receiver Chase Claypool.

[30] In 2020, Watt appeared in a Subway commercial with his brothers J. J. and T. J. along with their parents John and Connie.