Hardy was not disciplined, and he played in Sunday's 10–6 loss and recorded one tackle.
Hardy missed practice last month and could not immediately be located by the team.
The Cowboys have not won a game since Hardy joined the team on Oct. 11 after a four-game suspension stemming from a domestic violence incident last year. In July 2014, Hardy was found guilty of two counts of domestic violence.
Hardy was originally sentenced to 18 months probation and a 60-day suspended jail sentence. His punishment was later vacated after he appealed the guilty verdict, and charges against him were subsequently dropped when his ex-girlfriend Nicole Holder, the victim, failed to appear at the jury trial.
The Cowboys (2–7) will face the Miami Dolphins on Sunday.
- Christopher Chavez