A look at Friday's injury report and what it means:
Out: MLB Rey Maualuga (ankle)
Doubtful: WR Ryan Whalen (hamstring)
Impact: Cincinnati suffered a major blow when Maualuga was declared out after he sprained his ankle in Thursday's practice. The timetable for his return is unknown. Dan Skuta gets his second career NFL start. ... For the Colts, four starters are questionable: RB Joseph Addai, LT Anthony Castonzo, RG Ryan Diem and CB Jerraud Powers.
Probable: DB Eric Hagg (knee)
Impact: Mack returned to practice with limited participation, which provides some hope that he could play Sunday. If Mack can't play, Steve Vallos would start. Haden hasn't practiced since spraining his knee, but coach Pat Shurmur refuses to rule him out. If Haden is sidelined, Dimitri Patterson would start at cornerback. ... For the Raiders, two starters -- CB Chris Johnson and DE Matt Shaughnessy -- are out. Two others are questionable: FS Michael Huff and MLB Rolando McClain.
Questionable: LG Ben Grubbs (toe)
Impact: Evans will miss his third straight game, which means Torrey Smith will continue to start alongside Anquan Boldin. With Zbikowski out, Bernard Pollard starts against his former team in the Texans. Grubbs' foot got stepped on during practice but he should return Sunday. David Reed might also resume his kickoff return duties. ... For the Texans, WR Andre Johnson was ruled out as expected. There were 19 players listed as probable, including quarterback Matt Schaub (right shoulder) and RB Arian Foster (quadriceps).
Impact: The Steelers will be without Harrison, Hampton, Smith and Kemoeatu for a second straight week. That means Lawrence Timmons starts at OLB along with replacements NT Chris Hoke, DE Ziggy Hood and LG Doug Legursky. Jonathan Scott, who struggled at LT, fills in for Gilbert at RT. ... For the Jaguars, two starters could be sidelined. CB Derek Cox is doubtful and LT Eugene Monroe is questionable.