The news was announced on Twitter by the Dolphins and at the Pro Football Hall of Fame web site.
Both teams that play in the preseason opener usually have connections to incoming Hall members. In this case, the Dolphins and Cowboys each employed Bill Parcells. He was Cowboys head coach from 2003 to 2006 and worked as Miami’s top football executive from 2008 to 2010.
Another inductee – guard Larry Allen – played with the Cowboys from 1994 to 2005. Cowboys owner Jerry Jones will give Allen’s Hall induction speech on Aug. 3.
Other members of this year’s Hall class include Curley Culp, Cris Carter, Jon Ogden, Dave Robinson and Warren Sapp.
The Dallas Morning-News reported the Cowboys had interest in playing an extra preseason game as a chance to better prepare for the shift from a 3-4 defense to a 4-3 scheme under new coordinator Monte Kiffin.
Dallas last played in the Hall of Fame game in 2010; Miami’s last appearance came in 2005.