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Packers RB Eddie Lacy is rarely inactive for a game. This is only the second game of his career that he's missed. AP Photo Jeff Chiu

After losing his starting job earlier in the week, Green Bay Packers running back Eddie Lacy (groin) was declared inactive for the team's matchup with the Detroit Lions on Sunday.

This is the first game Lacy has missed since Week 3 of his rookie season (Sept. 23), when a concussion sidelined him for a 34-30 loss to the Cincinnati Bengals.

Lacy overcame that injury and finished his rookie season with over 1,100 rushing yards. He eclipsed that same milestone last year, without missing a single game. This former second-round draft pick has struggled to make a similar impact this year; he'd be lucky to finish with 600 yards.

James Starks, a 29-year-old veteran, is the Packers' new No. 1 running back, as he's been the more effective ball-carrier this season with a yards-per-attempt average of 4.3 (Lacy is only averaging 3.7 yards per carry).

Lacy said earlier in the week that injuries have not been a factor this season, but Green Bay's decision to inactivate him in Week 10 seems to contradict that claim.

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