The Cowboys placed LB Bruce Carter in injured reserve on Monday. (US Presswire)

The Cowboys have already had a busy week of personnel moves -- all occurring Monday morning.

The most significant was the move to place linebacker Bruce Carter on injured reserve after he sustained a dislocated elbow last Thursday against the Redskins. Carter will likely need surgery in the near future.

The Cowboys have signed two veterans, including linebacker Brady Poppinga, who played six years in Green Bay, and started 12 games last year with the Rams.

The club also brought in wide receiver Anthony Armstrong, who played the last two years with the Dolphins and Redskins.

Armstrong also played with the Dallas Desperados, a now-defunct Arena League team owned by Cowboys owner Jerry Jones and operated by several members of the Cowboys organization. The Desperados' head coach was by Will McClay, who now serves in the pro scouting department for the Cowboys as director of football research.

The Cowboys also made two moves on the practice squad, placing wide receiver Danny Coale (hamstring) on injured reserve and signing cornerback Reggie Evans. They still have an open spot on the practice squad and could retain recently-waived receiver Andre Holmes if he clears waivers.

Carter became the fourth defensive starter to land on injured reserve, along with Barry Church, Kenyon Coleman and Sean Lee. Carter was blossoming into a defensive stalwart in the middle before the injury last Thursday, which occurred in the third quarter.

At inside linebacker, the Cowboys are now left with Dan Connor, Ernie Sims, Alex Albright, and now Poppinga.

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