Knight was signed to the Jets' active roster from their practice squad, Ethan Greenberg of the team's official site reports.
Knight joined the Jets as an UDFA out of NC State, and he did initially make the 53-man roster after impressing in camp, but he was ultimately waived and signed to the practice squad in early September. With Breece Hall (knee) out for the season, and recent acquisition James Robinson's debut date unknown due to knee soreness, Knight will be able to provide depth at running back for the team moving forward.