Bryant had to be helped off the field. A magnetic resonance imaging exam is scheduled for later tonight.
Cowboys vice-president Stephen Jones said it looks like the injury will force Bryant to miss some practice time.
Bryant has been the talk of camp recently for refusing to carry the shoulder pads of Roy Williams as part of a rookie ritual.
However, Friday's injury is a setback for the former Oklahoma State star who signed his contract and reported to camp on time in order to get a fast start in getting in tune with his new teammates and the offense.
The Cowboys are scheduled for two practices on Saturday.
-- Clarence E. Hill Jr.