Ryan Tannehill struggling in Miami

Dolphins quarterback Ryan Tannehill is starting his second consecutive preseason game tonight, and for the second consecutive week he’s failed to complete 50 percent of his passes. At halftime, Tannehill has completed 11 of 25 passes for 112 yards, with no touchdowns, one interception, one fumble and a passer rating of 40.8. Tannehill’s best play…