The Minnesota Vikings have officially named six players "captains" for the 2018 season.
Those players (Kirk Cousins, Everson Griffen, Linval Joseph, Riley Reiff, Kyle Rudolph, Anthony Barr) though they may not serve as captains for each and every gameday, they'll be the voice between the locker room and the coaches office throughout the regular season. It's their duty to bring any concerns to attention either way.