The New England Patriots signed veteran running back Terry Allen in an attempt to fill the hole left by Robert Edwards's career-threatening knee injury.
Allen gained 700 yards in 10 games for the Redskins last year, averaging 4.7 yards per carry.
But the 31-year-old runner has a history of knee problems of his own.
Picked by the Vikings in the ninth round out of Clemson in 1990, Allen missed his entire rookie season after knee surgery. He also missed the 1993 season with a knee injury.
Edwards ran for 1,115 yards during his rookie season last year, but he severely injured his knee during a beach football game at the Pro Bowl in February. He will miss the entire 1999 season because of the injury, which doctors have said could end his career.
PACKERS: Tight end Mark Chmura says he isn't ready to retire.
The three-time Pro Bowler has a bulging cervical disk in his neck and he temporarily lost feeling in his upper body when he was hit during practice in training camp earlier this month.
Chmura's wife, Lynda, and his agent, Eric Metz, have suggested he retire.
"Believe me, if the doctors said I should retire, then I would. But everything I hear is great, so I'm continuing," Chmura told the Post-Crescent of Appleton, Wis.
SEAHAWKS: Wide receiver Joey Galloway won't accept what the team has called its final contract offer, Galloway's agent said.
"They gave us a Friday deadline to accept the offer and we're not going to accept it," agent Eric Metz said.
Seahawks spokesman Dave Pearson said the team wouldn't make another offer.
DOLPHINS: The team released fullback Roosevelt Potts. Potts, 28, started 15 games for the Ravens last season and rushed for 115 yards on 36 carries. He also caught 30 passes for 168 yards and two touchdowns.
CHIEFS: Tight end Tony Gonzalez had an MRI exam on his right knee and it showed there was no long-term damage and he could be ready for the Chiefs' season opener at Chicago on Sept. 12. He was injured in Thursday night's 31-6 preseason loss at Jacksonville.