Johnson (neck) is listed as doubtful for Sunday's game against the Texans.
Johnson's practice reps in each of the first two practices of Week 7 prep were limited due to a neck injury, and he was sidelined entirely for Friday's session. He's trending toward missing a second consecutive game, so Thomas Fidone and Chris Manhertz would both be in line for more work behind Isaiah Likely in the event that Johnson is ruled out for Sunday's contest.