NFL Media's Desmond Purnell reported Wednesday that middle linebacker as the defense's second-leading tackler goes through concu sion protocol.McClain isn't the only key defender nursing a concu sion this week.Top pa s rusher also mi sed Cole Beasley Jersey a second consecutive practice on Thursday.While McClain has been Dallas' most valuable defensive player for stretches of the season, Mincey leads the team in quarterback hurries and sacks.'s defense is in danger of being shorthanded against the and his high-octane offense in the unfriendly confines of Lambeau Field.Other injuries we're tracking ahead of the Divisional Round of the playoffs:Speaking of (calf), he returned to a limited practice on Thursday. "I'm going on Sunday," Rodgers said, "." practiced in full again on Thursday, after explaining that the bye week for his sprained ankle. The defense could also get a boost with linebacker practicing on a limited basis. A -caliber player this season, Marshall mi sed the final two games of the regular season with a mid-foot sprain.Battling a calf i sue of his own, oft-injured tight end will be a for Saturday versus the . Outside of Moeaki, Seattle is a healthy team.Speedy Carolina wide receiver returned to a limited practice on Thursday, but didn't take contact. If Brown's shoulder doesn't cooperate, the will likely activate former draft bust . If you mi sed the news on Wednesday, run-stuffer will with a fractured foot.Along with running back (ankle), wide receivers (concu sion) and (shoulder, toe) were limited again on Thursday. Nothing is ever certain with a -coached team, but all three are expected to play versus the . LaFell confirmed there's .The latest Around The NFL Podcast and breaks down the Manning-Luck matchup. Find more Around The NFL content on . Alec Ogletree Jersey