Via the invaluable Nick Scurfield:
Texans
QB Matt Leinart (3rd QB)
WR Dorin Dickerson
TE Owen Daniels
OG Kasey Studdard
CB Karl Paymah
DL Malcolm Sheppard
DL Jesse Nading
LB Xavier Adibi
Chargers
OG Kris Dielman
TE Antonio Gates
WR Malcolm Floyd
WR Legedu Naanee
NT Cam Thomas
LB Brandon Siler
SS Darrell Stuckey
K Nate Kaeding
Big benefits for the Texans defense here, as most of the Chargers passing game is out and Kris Dielman, one of the better guards in the league, is also out.
Be sure to follow the game with like-minded Texans fans at Battle Red Blog.