It's not often that you hear of this in the NFL but the Cowboys are practicing an offensive player on defense this week.
With Sean Lee injured:
And limited depth at the linebacker position, the Cowboys made the switch:
Smith started his career as a linebacker but couldn't quite catch on so Jason Garrett converted him to fullback. He played college football at San Jose State where he Division 1 FBS in tackles and tackles per game in 2013
Source: Twitter · Photo Credit: Keystone Press Agency