He was cut by the Dolphins and listed as injured.

As you point out, right now The Packers are down to Jacobs and Wilson. Lloyd may be back soon, but for now there's an opportunity. But that Packers also have 3 RB on the practice squad (well 2 RB and a FB) in Brooks, Ellis Meriweather, and Andrew Beck (the FB). There's opportunity here, but if Brooks isn't fully healthy himself, then it's likely going to default to Meriweather