Carlson missed last night's game against Tampa Bay with concussion-like symptoms that appeared to stem from Johnson's block during a punt.
Johnson is a four-year veteran and an Alabama University product. He was a third round pick of the Cardinals in the 2009 NFL Draft. He has compiled six tackles so far this season.
The Cardinals are presently seven-point underdogs to the 49ers heading into Monday night's huge battle in Glendale.
Defensive end Calais Campbell (quadricep ), CB Michael Adams (hamstring), ), LB Quentin Groves (hamstring), S James Sanders (knee , LB Paris Lenon (ankle), ), LB O'Brien Schofield (knee), QB John Skelton (ankle), LB Reggie Walker (head) all fully participated in practice today and should play on Monday night.
Defensive tackle Darnell Dockett (hamstring) and safety Kerry Rhodes (back) were limited in practice today but both are hopeful of playing against San Francisco. Tight end Todd Heap (knee), who has missed most of the season, was limited as well and his playing status is currently up in the air at this point.
Tags: Arizona, Arizona Cardinals, Calais Campbell, Darnell Dockett, Football, John Skelton, Kerry Rhodes, Michael Adams, NFL, O'Brien Schofield, Paris Lenon, Rashad Johnson, Reggie Walker