The Dallas Cowboys said Thursday that linebacker DeVonte Holloman has a career-ending neck injury related to a spinal problem that kept him out almost half of his rookie season a year ago.
Coach Jason Garrett said Holloman, 23, was advised not to play again after doctor evaluations this week.
Garrett wouldn't discuss details of the injury other than saying Holloman has been dealing with a neck issue "the last couple of weeks." Holloman came out of last weekend's preseason game against Baltimore midway through the fourth quarter because of the injury.
The sixth-round pick, who played the first six weeks in 2013 before injuring his neck in practice and missing seven games, led the Cowboys with 11 tackles in a season-ending loss to Philadelphia that kept Dallas out of the playoffs.
Eagles 31, Steelers 21: Nick Foles threw for 179 yards and a touchdown to lead Philadelphia to an exhibition win over Pittsburgh. Eagles All-Pro running back LeSean McCoy left the game with a right thumb injury after a 22-yard TD catch gave the Eagles a 7-0 lead. X-rays on McCoy's thumb were negative, but he didn't return.
Steelers running backs Le'Veon Bell and LeGarrette Blount both played one day after they were arrested for marijuana possession shortly before Pittsburgh traveled to Philadelphia.
Chiefs: Linebacker Joe Mays was told he would need surgery on the wrist he injured last weekend at Carolina. Mays, who was expected to start alongside Derrick Johnson at inside linebacker, will likely have the procedure later this week, according to a person familiar with the situation who spoke to The Associated Press on condition of anonymity because the team had not revealed the surgery.
Mays signed a $6 million, two-year contract with the Chiefs in the offseason.
Chargers: The San Diego Chargers are expecting Levi's Stadium's new turf to be installed in time and ready for action by Sunday's 1 p.m. exhibition against the 49ers. "They assured us the field will be fine and ready to go at the scheduled time," Chargers coach Mike McCoy told The Associated Press.
The 49ers only public comment thus far on the turf was Wednesday night's declaration that it will be remedied in a way that Sunday's game can go on as planned. While groundskeepers began the sod's extreme makeover Thursday, 49ers players had the day off.
Chargers kicker Nick Novak didn't sound concerned about the surface, telling the AP: "I'm sure it will be fine when we get there. We're just going to play ball. It doesn't matter what the field is like."
Bills: Coach Doug Marrone blew up at his players, sending a message that he's fed up with too many fights and post-whistle shoving matches during practice.
Marrone cleared the field during the middle of a team drill and ordered players to run sprints after several of them exchanged shoves. That included receiver Marquise Goodwin pushing down rookie cornerback Sam Miller from behind.
Marrone then directed his anger at starting defensive end Jerry Hughes on the sideline.
Looking directly at Hughes, Marrone used several profanities in telling the player to stop complaining.
Walking off the field, Hughes referred questions about what happened to Marrone, and added: "The head coach took care of it."
Marrone said his comments were directed at the team and not Hughes.
Vikings: Adrian Peterson missed practice for the second straight day, but the team does expect the star running back to make the trip to Kansas City this weekend. Peterson missed practice on Wednesday and Thursday for what the team called personal reasons.
Staff writer Cam Inman contributed to this report.