Maybe the Dallas Cowboys are the “ mystery team ” Drew Rosenhaus, the agent of free-agent defensive end Greg Hardy, was referring to. According to Mike Fisher of 105.3 The Fan in Dallas , the Cowboys are currently “negotiating to sign” Greg Hardy, who played in only one game for the Carolina Panthers in 2014. Hardy was convicted of assaulting and threatening his ex-girlfriend last year in a bench trial, but the case was dismissed on Feb. 9 after Hardy asked for a jury trial and his accuser refused to cooperate and failed to show for court. Hardy played in Week 1 for the Panthers last year, but was deactivated the following week as his legal issues played out and heat surrounding domestic violence in the NFL intensified. On Sept. 17, Hardy agreed to be placed on the commissioner’s exempt list and he did not play for the rest of the season. The 6-foot-4, 275-pound Hardy was extremely productive for the Panthers before his legal issues popped up in 2014. He combined for 18 sacks in his first three seasons before breaking out with 59 tackles and 15 sacks in 2013. He would certainly provide a boost for Dallas, but is his production worth all of the baggage? That’s a question the folks in the Cowboys’ front office will have to ask themselves. On top of that, Peter King of The MMQB is reporting that there’s a “good chance” Hardy will be suspended for the first six games of the 2015 season. That’s another thing the Cowboys will have to look into. – – – – – – – Sam Cooper is a contributor for the Yahoo Sports blogs. Have a tip? Email him