Carolina Panthers quarterback Baker Mayfield could miss Sunday's game against the Los Angeles Rams.
Per the team's official injury report, the 27-year-old is officially listed as doubtful and did some running and throwing on the practice field Friday.
PJ Walker has taken all the first-team reps in practice throughout the week. He would be in line to start if Mayfield is unable to play.
Injuries are becoming a common occurrence for Mayfield. He missed three games last season while playing for the Cleveland Browns, though he played most of the year with a torn labrum and shoulder fracture.