ALLEN PARK -- Running back Theo Riddick and defensive end Ezekiel Ansah returned to Detroit Lions practice Thursday, giving Detroit all of its active roster players except for concussed center Travis Swanson.
Riddick missed Wednesday's practice with a wrist injury after weeks of being limited by an ankle. Ansah's ankle has flared up throughout the season, but he hasn't missed a game because of it since Week 10. Ansah is still searching for his first sack after posting 14.5 during a Pro Bowl campaign a season ago.
Swanson played every snap in the Lions' 28-13 win over the New Orleans Saints on Sunday, but by the first practice of the next week, the third-year center was out with a concussion.