This is the third time Loper has been released since he signed with the Cowboys on Oct. 18.
The Cowboys promoted Washington from the practice squad because of Felix Jones’ questionable status. Jones has not practiced all week due to a hamstring strain, meaning that 12-year veteran Sammy Morris will probably play a much larger role than anticipated when the Cowboys signed him less than two weeks ago.
Washington can fill Morris’ roles on special teams, having played six games under special teams coordinator Joe DeCamillis for Jacksonville in 2008 and two for the Cowboys in 2009. He has only four carries for nine yards in his NFL career.
Morris, who had been out of the league since the Patriots released him at the end of preseason, impressed with a 12-carry, 53-yard performance in his Dallas debut.
"Morris has been a pleasant surprise,” owner/general manager Jerry Jones said Friday on KRLD-FM. “He's had a good week. Sammy Morris, I think tomorrow he is going to play and he's going to play more than we thought he was going to play thinking back last week. I'm confident he will do a good job.”