Even if he plays on a limited basis, Megatron's availability is a big boost for Matthew Stafford, Reggie Bush and the entire Lions offense. Johnson missed last week's game, and he was limited in practice on Thursday and Friday while dealing with knee swelling.
The pregame workout was key to Johnson being active Sunday. Reporters saw him running routes sans the knee brace, which was a good sign that the inflammation might be minimal. It's also a good sign for the amount of snaps he might play.
There was optimism going into the workout that Johnson would be able to play, NFL Media Insider Ian Rapoport reported earlier Sunday on NFL Network's "NFL GameDay Morning."
Megatron being active transforms how the Browns will have to defend the Lions. Even if Johnson was limited to red zone and third-down plays, his availability in any fashion is a big boost for an offense that looked lost without him last week.