The Lions signed two undrafted rookies Tuesday to replace two players they placed on the waived-injured list.
They signed defensive tackle Bobby Skinner, who was waived after a brief stay with the Giants. The Lions have been short staffed at DT with Sammie Hill (back), Corey Williams (knee) and Andre Fluellen (undisclosed) missing time.
They also signed cornerback Isaac Madison, who had been released by the Cowboys.
On Monday the Lions waived-injured safety Don Carey (hamstring) and tight end Nathan Overbay (knee).
The new guys might not have much time to show their stuff. The first cut day, from 90 to 75, is Monday.