The Facts: Williams is expected to work out for the Cowboys, a source said.

Diehards Line: Williams, who was cut by the Cardinals on Monday, was drafted in the second round in 2011. He has appeared in only five NFL games, rushing for 164 yards on 58 carries. Williams has has experienced one bout of misfortune after another since entering the league. He ruptured the patella tendon and missed his entire rookie campaign. Then he injured his shoulder his second season. Hoping to return to the field in 2013, he instead experienced another setback brought on by knee problems from the torn patella tendon he had suffered. The Cowboys have five tailbacks on their roster -- DeMarco Murray, Lance Dunbar, Joseph Randle, Glasco Martin and Ben Malena. ... Stay tuned. More if developments warrant.