Su'a Cravens will miss the entire preseason for the Redskins, save for three snaps already logged against the Ravens.

In those three snaps, Cravens injured his knee, and on Tuesday, Adam Schefter reported the second-year safety will undergo surgery on the knee.

The surgery will clean up swelling that occured in his knee following the Ravens game, per a source, and Cravens should be good to go for Washington in Week 1 of the regular season.

For Redskins fans, there might be some reason to worry.

One argument might suggest that Cravens has never played safety in the NFL after being used his entire rookie season as a linebacker. Therefore, Cravens needs the practice reps as a safety.

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While certainly he could use the practice at safety, this concern seemse overblown. Cravens is a much more natural player in the secondary than he ever was at linebacker. In college, Cravens played his best at safety, and his versatility will allow him to do more from the safety spot.

Cravens has already dealt with a number of different injuries, and perhaps that might concern 'Skins fans. As a rookie, Cravens missed time with a concussion and then late in the year with an upper arm injury. He played in 11 of 16 games last year. None of the injuries seem like the lingering type, which is good news.

With Cravens out the Redskins will turn to Deshazor Everett, a third year player out of Texas A&M. Primarily a special teams force, Everett got minimal playing time at safety in 2016. In his only real opportunity to play with the defense in a Week 14 win at Philadelphia, Everett grabbed a vitally important interception in the end zone.

Everett is unknown, but has ability. He also has a big opportunity these next three games playing alongside D.J. Swearinger.

Behind Everett, the Redskins best options are both working back from injuries. Rookie Montae Nicholson, a somewhat surprising fourth-round selection out of Michigan State, just returned to team drills during the last few practices in Richmond. Nicholson has size and track speed, but much remains to be seen if he can improve his cover and tackling ability.

Don't forget about veteran DeAngelo Hall. He started the season on the PUP list, expectedly, after landing on the injured reserve in 2016. Hall hasn't played a full season since 2013, when Mike Shanahan was still the Redskins coach and RG3 the starting quarterback. A lot has changed since then.

Watching from the sidelines in Richmond during training camp, Hall seemed more of a coach than a player working back from injury, though he was seen running on the drill field late in camp. It would be a major surprise if Hall played in the preseason.

The Redskins intend to go with Cravens against the Eagles. Everett will be the backup plan. Nicholson has much to prove, and Hall still seems far away from seeing the field as a player.

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