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The Green Bay Packers have placed defensive lineman Luther Robinson on injured reserve and signed defensive tackle Bruce Gaston off the Arizona Cardinals' practice squad.

Gaston, a 6-foot-2, 310-pound rookie out of Purdue, was originally signed by the Cardinals as an undrafted free agent, but didn't make the final roster. He spent parts of September with the New England Patriots and Miami Dolphins before being signed to the Cardinals' active roster in late September.

Gaston, who was inactive for all five games he was on an active roster, has been on Arizona's practice squad since the first week of November. He'll wear No. 99.

Robinson, 23, started the season on the Packers' practice squad before being promoted the first week of October to the active roster. He had two tackles with a pass deflection in five games. He injured his calf during practice Friday.

ESPN is reporting cornerback Sam Shields (concussion) has cleared his protocol and will play Monday night against the Atlanta Falcons. Shields had been listed as questionable.

The same report said Atlanta will also have receiver Roddy White available. He missed last week's 29-18 win over Arizona with a knee injury.

-whodkiew@pressgazettemedia.com and follow him on Twitter @WesHod.