David Amerson, left, talks to Baccari Rambo during rookie minicamp.

The Washington Redskins on Friday afternoon announced that they have signed second-round pick David Amerson to his rookie contract.

Taken 51st overall out of N.C. State, the cornerback was Washington’s first pick of the 2013 draft.

Terms of the deal were not disclosed, but Amerson’s contract will be of similar worth to the one that last year’s 51st overall pick – Green Bay defensive tackle Jerel Worthy – signed: a four-year deal worth $3.95 million deal with a $1.3 million signing bonus.

Upgrading the secondary was a priority for Washington this offseason. Last season, the Redskins ranked 30th out of 32 teams when it came to stopping the pass.

The 6-foot-1, 205-pound Amerson in 2011 led the nation with 13 interceptions. He recorded another five as a senior. He is expected to compete for playing time alongside projected starters DeAngelo Hall and Josh Wilson.

It’s possible that Amerson could earn the role as third corner and would play often. Last season, Hall and Wilson started on the outsides, and versus three-receiver sets, which opponents featured often, Hall would slide inside to cover slot receivers. Cedric Griffin would play on the left edge while Wilson remained at right corner. Griffin no longer is with the team.

The Redskins also signed former Tampa Bay Buccaneer E.J. Biggers to compete for playing time at cornerback. Second-year pro Richard Crawford returns, and Chase Minnifield, who went undrafted last year and missed the whole season with a knee injury, remains under contract.

Washington has now signed six of its seven draft picks with third-round pick, Florida tight end Jordan Reed, remaining as the only unsigned selection.

Have a Redskins question? E-mail Mike Jones at mike.jones@washpost.com with the subject line “Mailbag question” for him to answer it in the Monday Mailbag.

Other Redskins signings in the past week:

Fourth-round safety Phillip Thomas

Seventh-round running back Jawan Jamison

Fifth-round running back Chris Thompson

Tryout camp wide receiver Lance Lewis

Sixth-round safety Baccari Rambo, fifth-round linebacker Brandon Jenkins

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