Cardinals running back Andre Ellington (knee) was limited at Wednesday's practice, Darren Urban of the Cardinals' official site reports.
Coach Bruce Arians relayed that Ellington 'should be ready' to return Sunday at Detroit following a three-game absence due to a sprained PCL.
If he upholds Arians' belief, Ellington's workload would likely be capped to avoid a setback of any kind, allowing Chris Johnson to serve as the Cardinals' top running back yet again. However, the breakdown of reps in Week 5 could receive clarification in advance of the contest.