Has the [Only registered and activated users can see links. ]' quarterback battle already turned into a two-horse race?
It appears so, [Only registered and activated users can see links. ], which reported Monday that rookie Ryan Tannehill isn't currently in the running for the starting job.

Tannehill's workouts with the team have been plagued by untimely mistakes, particularly when throwing into traffic. New Dolphins coach Joe Philbin is trying to build an offense that emphasizes ball security, and Tannehill doesn't appear to be a natural fit at this time, according to the newspaper.
This means Tannehill -- barring a substantial turnaround in training camp and the preseason -- likely will begin the season as the No. 3 quarterback on the roster.

This isn't devastating news with regard to Tannehill's development by any means. Brian Hartline [Only registered and activated users can see links. ] about the positives he has seen from the eighth overall draft pick, who certainly wouldn't be the first rookie quarterback to be in the weeds during his initial NFL workouts.
Yes, the two quarterbacks taken ahead of Tannehill will start in Week 1, but it was well known before draft day that Andrew Luck and Robert Griffin III were always on a different plane from the rest of the field. Tannehill is more of a project, and it appears he'll be handled that way.