The Facts: Tight end Aaron Walker replaced McMichael in the St. Louis Rams' starting lineup for Sunday's game against the Arizona Cardinals. A team spokesman said McMichael was not hurt.
Diehards Line:McMichael was signed as a free agent in the offseason after playing five years with the Miami Dolphins. This season, McMichael has nine receptions to 101 yards. Walker, a five-year veteran, entered with one catch for 8 yards.