The Texans placed Horton (Achilles) on injured reserve Tuesday, Aaron Wilson of KPRC 2 Houston reports.
Mapu (undisclosed) reverted to the Texans' injured reserve list Tuesday, Aaron Wilson of KPRC 2 Houston reports.
Herbert is expected to play in the preseason finale, Alex Insdorf of BoltBeat.com reports.
Woodaz (thumb) is expected to be ready for the Texans' regular-season opener Sunday, Sept. 13 against the Bills, Aaron Wilson of KPRC 2 Houston reports.
Mitchell sustained a mild setback, offensive coordinator Mike McDaniel said on Monday.
Gadsden recorded two catches for 24 yards on three targets during Thursday's 41-17 preseason loss to the 49ers.
Horton suffered a torn Achilles on Monday, Jonathan M. Alexander of the Houston Chronicle reports.
Jordan (knee) did not participate at Monday's training-camp practice, Aaron Wilson of KPRC 2 Houston reports.
Jordan (hip) did not participate at practice Monday, Aaron Wilson of KPRC 2 Houston reports.
Pitsenberger (ankle) reached an injury settlement with the Texans on Monday, Aaron Wilson of KPRC 2 Houston reports.
