Johnson (calf) was left off Buffalo's injury report Wednesday ahead of Sunday's Week 1 game against the Cardinals.
Johnson sustained a calf injury during the Bills' preseason game against the Steelers, but it now appears that he's moved past the issue. The veteran defensive tackle appeared in 17 regular-season games with the Chargers last season, recording 46 total tackles and two passes defended. He's expected to serve as a rotational piece on the Bills' defensive line in his first season in Buffalo.