Gresham was unable to practice Wednesday due to an illness, Darren Urban of the Cardinals' official site reports.

Gresham has emerged as a consistent threat in the Cardinals' passing attack over the last four contests, notching at least 30 yards in four straight and scoring touchdowns in back-to-back games. Although he's come down with an illness, he has plenty of time to recover in time for Sunday's outing against the Redskins.

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