The Cowboys plan to activate Lamb from the reserve/COVID list Thursday, Todd Archer of ESPN.com reports.
The same goes for Cowboys safety Damontae Kazee and defensive tackle Carlos Watkins. All three will rejoin the team with plenty of time to prepare for Week 1, though Lamb did miss more than a week of practice. Meanwhile, QB Dak Prescott has recovered from a shoulder injury, giving the Cowboys their full stable of playmakers for next Thursday's season opener at Tampa Bay.