The Miami Dolphins running back will miss the rest of the season with a torn chest muscle, according to agent, Leigh Steinberg .
Williams was hurt in Monday's 3-0 loss at Pittsburgh, when he played in his first game in nearly two years. He returned following a 11/2-year suspension for his latest violation of the NFL drug policy.
Steinberg said the rehab will take five months.
For 591/2 scoreless minutes, the Dolphins and Steelers slipped and slid on swampland masquerading as an NFL playing field, stuck so deep in the messy muck that neither team managed much yardage, much less any scoring. The Steelers couldn't have picked a worse time to lay down new turf.
PATRIOTS: Activated receiver Troy Brown, a former Blackville-Hilda standout, from the physically unable to perform list, reviving the career of one of the most versatile players from their three Super Bowl victories.
Linebacker Rosevelt Colvin was placed on injured reserve, ending his season.
CHIEFS: Signed free agent place-kicker John Carney , making yet another attempt to correct a series of faulty decisions that has plagued their kicking game.
Carney replaces Dave Rayner , who was 15 of 22 after replacing Justin Medlock .
PANTHERS: Guard Jeremy Bridges was found guilty of pointing a gun at a woman in a parking lot and was given a 60-day suspended jail sentence.
Bridges also drew a year of unsupervised probation, 60 hours of community service and a fine of $500. His lawyers said they will appeal the verdict.
COLTS: Defensive end Simeon Rice , signed two weeks ago to fill in for injured Pro Bowler Dwight Freeney , was released.
JAGUARS: A Florida judge ruled that offensive tackle Khalif Barnes didn't violate his drunken driving probation by crashing his car on his way to medical treatment.
VIKINGS: Defensive tackle Fred Evans received a two-game suspension for violating the league's personal conduct policy during a pair of off-season incidents. Evans was arrested for marijuana possession and again for fighting with police.
HELPING HAND: Some NFL players will donate part of their paychecks from the league's Dec. 23 games to help needy retired players. Chiefs lineman Kyle Turley said he will donate his entire $25,000 paycheck.