The Dolphins built around quarterback Tua Tagovailoa and his two speedy wide receivers, but something still seems to be missing.

Tua Tagovailoa suffered another concussion in a career that has been full of them in Week 2. Here's a timeline on the Dolphins QB's head injuries:

Miami Dolphins quarterback Tua Tagovailoa isn’t giving up his playoff hopes — at least not yet. The Dolphins had just seen their three-game winning streak end with a 30-17 loss to the Green Bay Packers on Thanksgiving evening when Tagovailoa addressed the fact that Miami is two games behind Denver for the final AFC wild-card spot at 5-7.

Despite another efficient performance from Saint Louis alumnus and Ewa Beach native Tua Tagovailoa, the Miami Dolphins had their three-game winning streak snapped at the Green Bay Packers on primetime on Thanksgiving.

Tua Tagovailoa was a spiraling seamster, twirling passes through needle-loop sized holes in the New England Patriots zone for four touchdown passes to spark the 4-5 Miami Dolphins' third-consecutive victory.

Miami Dolphins quarterback Tua Tagovailoa has spent his career in the limelight. From his Pro Bowl stats to his frightening history with concussions, his mere presence on the football field has, at times,

During quarterback Tua Tagovailoa’s four-game absence, the Miami Dolphins looked like one of the worst teams in the NFL.

A dichotomy of mentality and physicality is driving the Miami Dolphins, who don't want Tua Tagovailoa to step into unnecessary hits, but are praising his lengthiest stride: a verbal cue pulled from his interest in boats.

The Dolphins inked their starting QB to a massive extension this offseason, but they may bring in a former NFL starter in case Tua Tagovailoa can’t stay healthy.

Tua Tagovailoa and Mike McDaniel hold out hope the Miami Dolphins still can make playoffs even at 5-7, trailing Denver for final spot by two games.