It was a first for Mike Shanahan.

The Washington Redskins, coming out of their bye week, voted to add captains to the group that has been in place since the start of the season and rookie quarterback Robert Griffin III was selected. It’s the first rookie Shanahan can recall being named captain, according to Mark Maske of the Washington Post.

It’s very hard to vote a rookie to be your captain,” Shanahan said. “But midway through the season, you say, ‘Hey, he’s our leader.’ ”

Griffin and defensive linemen Barry Cofield and Stephen Bowen were added as captains. Special teams ace Lorenzo Alexander, linebacker London Fletcher and left tackle Trent Williams opened the season as captains.

Follow me on Twitter: @BradBiggs

Brad Biggs covers the Bears for the Chicago Tribune