Giants defensive coordinator Perry Fewell will interview for the Redskins' coaching vacancy. (Seth Wenig/ Associated Press) Giants defensive coordinator Perry Fewell will interview for the Redskins’ coaching vacancy. (Seth Wenig/ Associated Press)

The Washington Redskins continue to widen their search for their next head coach, requesting permission to interview New York Giants defensive coordinator Perry Fewell, a person familiar with the situation.

It wasn’t immediately clear when that interview would take place. Redskins officials traveled to Seattle on Tuesday to interview Seahawks offensive coordinator Darrell Bevell and are scheduled to meet with Carolina Panthers defensive coordinator Sean McDermott on Saturday in Charlotte. The Redskins also are expected to interview Baltimore offensive coordinator Jim Caldwell and possibly Cincinnati assistant Hue Jackson.

Fewell, 51, has served as the Giants’ defensive coodinator since 2010. He held the same position with the Buffalo Bills from 2006-09.

The Giants this season ranked eighth in the NFL in total defense, limiting teams to 332.3 yards per game. New York ranked 31st on defense in 2012 and 27th in 2011. The unit ranked seventh in 2010.

ESPN first reported Washington’s interest in Fewell

Have a Redskins question? E-mail Mike Jones at with the subject line “Mailbag question” for him to answer it in The Mailbag on Tuesdays.

More from The Post:

Coaching interviews: Jim Caldwell | Sean McDermott | Darrell Bevell

Lovie Smith to Buccaneers  | Baylor’s Briles not contacted | All coach posts

The Early Lead: Packers, Bengals and Colts face blackout deadlines | More NFL

D.C. Sports Bog: Zero chance Cowher comes, Sharpe says | More Bog

Top candidates to replace Shanahan | Graphic: NFL coaches since ’99

Follow: @MikeJonesWaPo | @MarkMaske | @Insider | Insider on Facebook