Dolphins’ focus

The Dolphins have a promising young starter in Ryan Tannehill, who is entering his fourth season as the team’s No. 1 quarterback, and three veteran quarterbacks on the roster: Matt Moore, Josh Freeman and McLeod Bethel-Thompson, who spent last year on the practice squad. Expect the Dolphins to add an undrafted rookie to serve as a training camp arm and push Bethel-Thompson for the practice-squad spot.