Miami Dolphins Stock Watch

August, 19, 2013
8/19/13
4:00
PM ET
MIAMI -- Three preseason games are in the books for the Miami Dolphins.

Let's take a look at whose stock is rising and falling for Miami:

Falling

1. Dolphins’ tight-end depth: This weekend, Miami lost starting tight end Dustin Keller for the year with a knee injury. This is a big blow for the Dolphins, who were counting on Keller to stay healthy, produce and provide veteran leadership. Now Miami is scrambling to find answers with young players. The Dolphins have four young tight ends on the roster: Dion Sims, Michael Egnew, Kyle Miller and H-back Charles Clay. This will be a good test of Miami’s depth. Sims, Egnew and Clay were all recent draft picks of the past three years by Dolphins general manager Jeff Ireland. If Ireland got it right, at least one of these in-house tight ends should be able to step up and play a bigger role.

2. Dolphins backup O-line: If you thought Miami’s starters struggled at times, the Dolphins’ backup offensive line was worse. Players like offensive tackles Will Yeatman and Dallas Thomas did not do enough to inspire confidence from Miami’s coaching staff. Second-string quarterback Matt Moore (four sacks) was being thrown around in the second half. The Dolphins need some of these backups to step up and earn roster spots. Injuries happen every year on the offensive line, and someone needs to gain the confidence of the coaching staff. That hasn’t been the case so far in three preseason games.

3. Will Davis, cornerback: Miami’s third-round pick has been one of the surprise players of training camp. Davis has made a lot of big plays, but he struggled in his third preseason game against the Texans. Davis was beat on a double-move during a 38-yard touchdown catch by Houston Texans receiver Lestar Jean. Davis also played loose on coverage on a few other plays. Davis has made a lot of interceptions in practice and has a pick in the preseason. But he needs to work on being more consistent.

Rising

[+] EnlargeMike Wallace
Scott Halleran/Getty ImagesDolphins fans finally got to see Mike Wallace, the team's prized free agent this offseason, catch some balls in Miami's preseason game against Houston.
1. Mike Wallace, receiver: Miami fans were prematurely getting antsy because Wallace hadn’t caught a pass in the preseason. But Wallace exploded in the first quarter of Saturday’s preseason game against the Texans with three catches for 58 yards and a touchdown on one drive. Wallace showed a full array of skills against the Texans. He caught a short, intermediate and deep pass on the drive. Dolphins quarterback Ryan Tannehill and Wallace began a good week in practice and it carried over into the game. Dolphins fans can relax now that they saw the combo’s potential in the preseason.

2. Daniel Thomas, running back: With Lamar Miller the probable starter, the No. 2 tailback position was close between Thomas, rookie Mike Gillislee and Jonas Gray. But Thomas did a good job to separate himself with a strong performance against Houston. Thomas rushed for 25 yards on four carries and caught a 27-yard shovel pass. Health permitting, Thomas is now the clear favorite to be the first tailback off the bench to spell Miller. Thomas has been inconsistent and had issues with fumbling and injuries the past two seasons. But coaches have been raving about Thomas in Year 3, and he’s showing signs greater consistency.

3. A.J. Francis, defensive tackle: Miami’s defensive line is easily the deepest area of the team. The second- and third-string defensive linemen have been stout throughout training camp and the preseason. This week Francis, a third-stringer, had a good performance in limited playing time. Francis finished with two tackles, a tackle for loss, a quarterback pressure and a tipped pass. Francis was disruptive and showed good strength and movement down the line of scrimmage. It’s going to be very hard to make the Dolphins as a defensive lineman, but he made a good case Saturday night.

James Walker | email

ESPN Miami Dolphins reporter

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