ESPN medical analyst Dr. Mark Adickes details why Broncos WR Demaryius Thomas is seeking a second opinion on his injured hip. (0:48)

Denver Broncos wide receiver Demaryius Thomas, who suffered a hip injury Thursday night, underwent an MRI on Friday that now will be sent out for a second opinion, according to league sources.

But there is some concern that Thomas could miss some time, depending on the second opinion.

Demaryius Thomas suffered a hip injury in the Broncos' season-opening victory over the Panthers. Helen H. Richardson/The Denver Post/Getty Images

Thomas suffered the injury in the first quarter.

The Broncos, who took some time off this weekend after Thursday night's 21-20 victory over the Carolina Panthers, still are gathering more information on Thomas' hip injury.

Thomas had four receptions for 48 yards in the Broncos' season-opening victory.