Seymour signed with the Giants on Tuesday but was cut Wednesday with a failure to disclose physical condition designation, Aaron Wilson of ProFootballNetwork.com reports.
Seymour had a tryout with the Giants on Monday, Howard Balzer of SI.com reports.
Seymour (undisclosed) was waived with a non-football injury designation by the Raiders on Monday.
The Raiders placed Seymour (illness) on the reserve/COVID-19 list Wednesday, Aaron Wilson of Sportstalk 790 Houston reports.
Seymour (undisclosed) reverted to the reserve-non-football injury list Thursday, NFL reporter Aaron Wilson reports.
Seymour (undisclosed) was waived by the Raiders on Tuesday with a non-football injury, NFL reporter Aaron Wilson reports.