The fourth-year player, a reserve, got hurt in practice last week and missed the 24-10 win over the St. Louis Rams.
Green Bay signed tight end Justin Perillo off the practice squad to take Richardson's place on the roster. Perillo will add depth at a position that will be without veteran Andrew Quarless for at least another six weeks because of a left knee injury.
The Packers did get some good news on the injury front with receiver Davante Adams (left ankle), safety Morgan Burnett (calf) and guard T.J. Lang (right knee) each taking part in portions of practice open to reporters on Wednesday.
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