Hudson signed with the 49ers' practice squad Monday, Josh Dubow of the Associated Press reports.
Hudson was waived by San Francisco on Jan. 7 to make room for Ambry Thomas to be activated from the reserve/COVID-19 list. However, Hudson is now back with the team's practice squad to provide depth at tight end. Hudson has been active for two games this season, logging one offensive and 10 special-teams snaps.