PITTSBURGH — Pro Bowl running back Willie Parker didn't practice for a third consecutive day Friday and won't play in the Pittsburgh Steelers' division game in Cincinnati on Sunday.

Parker has missed the past two games with a sprained left knee. He returned to practice Monday and was expected to play against the Bengals, only to aggravate the injury while working out on his own Tuesday, according to coach Mike Tomlin.

Parker, who was hurt Sept. 21 in Philadelphia, will be replaced by third-down back Mewelde Moore. Moore, making his first start since 2005, ran for 99 yards against Jacksonville on Oct. 5.

Also not practicing Friday was left tackle Marvel Smith, who will be replaced by former starting right tackle Max Starks.

Pro Bowl nose tackle Casey Hampton took part in limited work for the second day in a row and is expected to sit out his third consecutive game. Chris Hoke would start for him.

MIAMI — Miami Dolphins linebacker Joey Porter was fined $20,000 by the NFL Friday for comments critical of beleaguered referee Ed Hochuli and his crew in Sunday's loss at Houston.On the first play of the Texans' drive for the winning touchdown late in the game, the former Steeler stripped quarterback Matt Schaub. Hochuli ruled the play an incomplete pass rather than a fumble, saying Schaub's arm was moving forward when hit.