The Dallas Cowboys are in need of help rushing the passer. Even if franchised defensive end Demarcus Lawrence ultimately opts against making good on his promise of sitting out until he's signed a long-term contract, the suspension of defensive end Randy Gregory means the Cowboys are down a pass-rusher in an era when a team can never have too many. Might veteran Robert Quinn help Dallas fill that void? Perhaps.

According to Tom Pelissero of NFL Network, Quinn visited the Cowboys on Tuesday as the team continues trade discussions for the veteran defensive end with the Miami Dolphins.

Miami is intent on moving on from Quinn as the team undergoes a major overhaul under first-year coach Brian Flores. Previous reporting has indicated the Dolphins would be willing to pay the eight-year veteran a portion of his existing contract to facilitate a trade, an approach they took in trading incumbent starting quarterback Ryan Tannehill to the Tennessee Titans last week. Miami also made it a bit easier to deal Quinn by last week paying him a $1.12 million roster bonus.

Quinn has struggled to live up to the four-year, $57 million with the St. Louis Rams. He had 17 and-a-half sacks combined during his final three seasons with Rams after notching double-digit sacks in each of the previous three seasons, including a whopping 19 sacks in 2013, when he was named First Team All-Pro and seemed poised for years of dominance getting after the quarterback from the edge.

The 28-year-old was traded to Miami last season, finishing with 38 tackles and six-and-a-half sacks.