The Lions moved quick to replace Marcus Robinson when they signed Troy Walters to a 1-year deal.  Walters played in 15 games (3 starts) last season for the Cardinals and he caught 23 passes for 209 yards (9.1 avg) with 2 TD grabs.  He also returned 24 punts for 250 yards (10.4 avg).  Walters will likely battle for the starting punt return job and he will probably be the #5 WR for the Lions.