The Texans' biggest veteran addition in the secondary had a scary moment in practice this week. Here's what we know.

Johnson, who was carted off the field with a knee injury during Thursday's training camp practice, may be able to return in time for the team's regular season opener on Sept. 7 at the Los Angeles Rams.

Aaron Wilson of KPRC2 reported that the field went silent, and that players took a knee when CJGJ was injured. According to him, it appeared the 27-year-old suffered a knee injury. This would be a major hit to Houston's secondary, which is already without Jimmie Ward, who is still recovering from a foot injury.