Amid injuries to more than a quarter of their starters, the Washington Redskins won't have Su'a Cravens for the rest of the season after putting the 22-year-old safety on the reserve/left squad list.

Cravens left the team before Week 1 while contemplating retirement. The Redskins had a month to decide what to do with the 2016 second-round pick and opted to rule him out this season.

"We sincerely hope that Su'a uses this time away from the club to reflect upon whether or not he'd like to resume his career in the National Football League in 2018," the Redskins said in a statement Monday.

Washington could have used Cravens with so many injuries in the secondary going into its game Sunday night against the Oakland Raiders. Cornerback Josh Norman and strong safety Montae Nicholson — who was starting where Cravens was supposed to play in his second season — each has a sprained shoulder, while special teams ace and backup safety Deshazor Everett has a sprained MCL in his knee.

Coach Jay Gruden said on a conference call that if Nicholson and Everett aren't 100 per cent, the team would consider promoting Fish Smithson from the practice squad. Following an NFL Network report Sunday that Cravens was set to rejoin the team this week, Gruden said he hadn't heard anything about or from Cravens.

"The last time I talked to him was when he informed me that he was leaving," Gruden said. "So that's all I know."

Cravens was seen on the sideline with Redskins senior director of player personnel Doug Williams on Saturday in Los Angeles before his alma mater USC's game against Texas. Agent Fadde Mikhail retweeted the photo with the message: "Su'a hanging out w Doug Williams. The end."

It's actually just the end of Cravens' season, one that was supposed to include a substantial role with Washington after converting from inside linebacker to safety.

"As far as him understanding if we want him or not, obviously he knows that," Gruden said Sept. 5. "We drafted him in the second round, for goodness' sake. We've given (him) every opportunity to be a starting safety here and he's taken advantage of that opportunity and played well in the time that he was playing it. He was growing with the position. This just kind of came out of nowhere."

With the Cravens situation settled for the rest of the season, the Redskins go into their Week 3 showdown with the 2-0 Raiders with injuries on each side of the ball.

In addition to Norman, Nicholson and Everett, running back Robert Kelley has a rib cartilage injury, tight end Jordan Reed has a bruised sternum in his chest, right tackle Morgan Moses has a sprained ankle and strained shoulder and linebacker Mason Foster has a dislocated shoulder.

Kelley's status seems the most uncertain

"Rob Kelley's a tough guy," Gruden said. "I think he'll try to play with that thing, but you never know how much pain he's in. We'll see how that rib heals. Same with Jordan, same with Josh, same with Montae, same with Mason, same with Deshazor, same with Morgan. They're all a concern, but they're all tough guys and hopefully we'll have them."

Gruden said which players are able to practice Wednesday will begin to determine who will be ready to take on the Raiders.

Kelley ran for 78 yards on 12 carries before leaving a 27-20 victory over the Los Angeles Rams. Third-down back Chris Thompson had a 61-yard touchdown run, but rookie Samaje Perine and Mack Brown are more likely to split Kelley's share of the duties if the second-year RB out of Tulane can't go against Oakland.

"Chris has got such a defined role for this offence and it could be expanded, but he's so important to us on third down we just have to be careful," Gruden said. "He's not the biggest guy in the world. We don't want him to get 20-25 carries a game and get a lot of pounding on that body."

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