Quarterback Jeff Hostetler of the Oakland Raiders has a compression fracture in his neck and will miss Sunday's game against the Indianapolis Colts.
Hostetler will be replaced by Vince Evans.
The Raiders, who have a bye next week, thought Hostetler might be ready to return in two weeks.
"The doctors are encouraged he'll be able to play after the bye," Coach Mike White said.
Hostetler suffered the injury to the cricoid bone in his neck late in the first quarter of Monday night's 27-0 loss to the Denver Broncos at Mile High Stadium. He was hit by linebacker Dave Wyman, who was ejected and later fined $4,000 by the NFL.
Meanwhile, slow ticket sales mean a local television blackout of the game at the Oakland Coliseum, the second of the Raiders' homecoming season. About 5,000 tickets remained at Thursday's deadline.
Jim Harbaugh, the top-rated passer in the NFL, is also among the lowest-paid starting quarterbacks and the Indianapolis Colts would like to change that.
"We'd definitely like to get something done," General Manager Jim Irsay said of Harbaugh, 31, who is making $953,000 in the last year of his contract.
"We are open to extending Jim's contract," said Harbaugh's agent, Leigh Steinberg. "It's Jim's desire to remain in Indianapolis."
San Diego Charger defensive end Chris Mims has been sued by a car dealership that claims he bounced a check for $28,526 for the balance of the purchase price of a Mercedes-Benz.
Hoehn Motors Inc. of Carlsbad filed suit in San Diego County Superior Court and is seeking the balance plus interest.