He played college football for the Kansas State Wildcats, earning two All-Big 12 honors prior to being selected by the Commanders in the second round of the 2024 NFL draft.

Sinnott was born on June 14, 2002, in Waterloo, Iowa, later attending Columbus High School.

[1][2] He committed to play college football for the South Dakota Coyotes before changing to the Kansas State Wildcats.

[5] Sinnott was named first-team All-Big 12 Conference as a redshirt sophomore after catching 31 passes for 447 yards and four touchdowns.

[10] Sinnott recorded his first career catch, a three yard touchdown, in Week 6 against the Carolina Panthers.