Left tackle Jeff Backus (hamstring) is doubtful to play Thursday against the Houston Texans, although there’s still a chance since he hasn’t been designated as out. Backus has started a remarkable 186 straight games. 

 The Lions didn’t practice Wednesday, so on their injury report they had to project who would have practiced and if they were full or limited.

 Free safety Louis Delmas (knee) would have been limited in practice. He has missed three straight games and only played in three all season.

 Cornerback Drayton Florence would have been limited, which means he’s been cleared to play after his concussion on Sunday. He is questionable for Thursday.

  Nick Fairley (illness), Jacob Lacey (foot) and Corey Williams (knee) are also questionable.

 (Follow @PaulaPasche on Twitter. Order her new book,  “100 Things Lions Fans Should Know & Do Before They Die’’ here. It’s also available at bookstores.)