Dolphins fire Cameron

A year ago Thursday, Dolphins owner Wayne Huizenga embarked on a two-week coaching search that took him as far as Central America to interview at least a dozen candidates.

Now the Dolphins are starting over.

Bill Parcells fired Cam Cameron Thursday after he won only one game in his first year as an NFL head coach. The move means Miami will have its fifth coach in five seasons.

Such instability has contributed to the Dolphins' decline. This season they lost their first 13 games and finished 1-15, the worst record in franchise history.

Late last month, they brought in Parcells to run the organization. He hired Jeff Ireland as general manager this week, and they fired most of the coaching staff Thursday.

Parcells made the decision to fire Cameron in consultation with Ireland, who spent the last seven years in player personnel with the Dallas Cowboys.

Raiders' Sapp calls it quits: Warren Sapp told the Oakland Raiders on Thursday that he was retiring, ending the career of one of the best defensive tackles to play in the NFL.

Sapp, 35, was the quintessential "three technique" tackle during his 13-year career, lining up between the guard and tackle and splitting that gap. Few did it better than Sapp, who made seven Pro Bowls, won the AP Defensive Player of the Year award in 1999, and was a key cog in Tampa Bay's Super Bowl winning defense in the 2002 season.

Titans' WR has surgery: The Tennessee Titans will be without top receiver Roydell Williams for the first round of the playoffs after he broke his right ankle in practice Wednesday. Coach Jeff Fisher said Thursday that Williams was having surgery to repair the bone at the base of the tibia, which will require a plate and screws.

Lions promote Colletto: The Detroit Lions promoted Jim Colletto to offensive coordinator, replacing Mike Martz. Colletto was Detroit's offensive line coach in 2007.