The Giants waived Sills on Tuesday, Field Yates of ESPN reports.
Sills began the 2021 campaign on the Giants' practice squad, but he was signed to the active roster ahead of Sunday's contest with the Panthers. New York was without its top three wideouts (Kenny Golladay (knee), Sterling Shepard (hamstring) and Kadarius Toney (ankle), so the 25-year-old wideout played 25 offense snaps and dropped his only target.