Coach Jason Garrett did not deny the story, which was first reported by Fox Sports, when he addressed the media Monday, a day after the Cowboys' seventh straight loss, a 10-6 defeat to the Tampa Bay Buccaneers.
"I don't want to get into any specifics about a player and him being late or missing things," Garrett said. "Suffice it to say that we have standards here with the Cowboys, that if a player were to miss something or be late for something, we address it in-house, and we address it the right way."
Hardy played in 60 of Dallas' 70 defensive snaps Sunday and was credited with one tackle and one tackle for loss, according to press box statistics.
He has not addressed the media since a loss to the Seattle Seahawks on Nov. 1.
On Nov. 6, Deadspin published photos of Hardy's ex-girlfriend from the night of a domestic violence incident that led him to be charged with assault and communicating threats, placed on the commissioner's exempt list for the final 14 games of the 2014 season and suspended for the first four games this season.
Last week, Hardy changed his Twitter bio, projecting innocence, but it was quickly changed after a conversation with Garrett. The next day was Hardy's reported absence from morning meetings.
In the first half Sunday against Tampa Bay, Hardy and DeMarcus Lawrence had a brief dustup on the sideline but walked off the field together at halftime. Garrett said the incident did not affect anybody.
"I don't think it's been easy for him, but I think he is doing his best to handle it every day," Garrett said. "He is a highly scrutinized guy. One of the things we are trying to do is create an environment for him where he can come be his best, come to work every day and work hard and get himself ready to play in this ballgame. And I think, for the most part, he has a done a pretty good job of that."
When Hardy signed with the Cowboys in March, Garrett said the team laid out standards and expectations for the defensive end, as they do with all players. In his first week back from suspension, Hardy said he wanted to come out "guns blazing" and made a comment about Tom Brady's wife. Hardy has also sent insensitive tweets that Garrett has had to address.
Garrett said there comes a time when enough is enough with a player. The Cowboys reached that point with running back Joseph Randle earlier in the month, but Garrett said they have not yet reached it with Hardy.
"If the behavior continues to persist, at some point you say, 'OK, we have to do something here,'" Garrett said. "But we'll take care of each individual case, we'll look at those things and decide what's best for our football team and try to uphold the standards that we have for our team in everything we do every day."
Garrett reiterated that the decision to sign Hardy was a collaboration with management, as is the case with all the team's decisions.
"We're trying to provide the right opportunity for him, the right structure for him, the right environment for him to play his best and to be his best," Garrett said. "We'll continue to do that."