SPECIAL EPISODE: Preseason update and wrapup

<p><em>On this episode of Dolphins Deep Dive, the South Florida Sun Sentinel's Chris Perkins and David Furones weigh in on Miami's joint practice with Jacksonville, as well as the team's week in Chicago and Detroit, ahead of the Dolphins preseason finale against the Jaguars on Saturday night. Plus, a look at the Dolphins' starting cornerbacks and the backup quarterback situation.</em></p>