The Giants placed Mizzell (undisclosed) on injured reserve Thursday, per the NFL's official transaction report.
Mizzell signed a reserve/future contract with the Giants on Monday, Michael Eisen of the team's official site reports.
Mizzell was signed to the Giants practice squad Monday, Art Stapleton of The Bergen Record reports.
The Saints waived Mizzell on Sunday, Amie Just of The New Orleans Times-Picayune reports.
Mizzell signed a reserve/future contract with the Saints on Monday, Mike Triplett of ESPN.com reports.
Mizzell went unclaimed on waivers and signed with New Orleans' practice squad Sunday, Amie Just of The New Orleans Times-Picayunereports.
Mizzell caught one pass for nine yards in Chicago's win over the Colts.
Mizzell lost one yard on four carries in the Bears' loss to the Giants.
Mizzell rushed twice for 14 yards while catching a pair of passes for an additional 21 yards in the Bears' 23-13 loss to the Panthers.
Mizzell is moving from running back to receiver, Larry Mayer of the Bears' official site reports.