The Miami Dolphins, a surprise playoff team last season, are now fretting about the status of their starting quarterback. Meanwhile, the Los Angeles Chargers second-round pick became the latest player to suffer an ACL injury. Also, the Pittsburgh Steelers third-round pick avoided major injury and the Buffalo Bills added a running back.

Dolphins 'concerned' about Tannehill

Miami Dolphins quarterback Ryan Tannehill went down in practice with a left leg injury after falling awkwardly while scrambling towards the sidelines in practice. Trainers looked at his knee, which had a brace on it, as the quarterback could not get up and was eventually taken inside for further evaluation.

Towards the end of last season, Tannehill suffered a sprained ACL and MCL in the same knee, which did not need surgery. A league source told ESPN's Adam Schefter that the team is “concerned” about the injury. However, the possible extent of the injury will not be known until more tests are done.

Chargers get worst possible news on Lamp

Yesterday, Los Angeles Chargers second-round pick Forrest Lamp went down with a right knee injury in practice during an injury filled NFL day. Now, the worst diagnosis has come in, has sources told Adam Schefter late yesterday that Lamp has torn his ACL and would miss his entire rookie season. The Western Kentucky product was competing for the starting guard job, which he likely would have won.

As John Clayton noted, Lamp is the eighth player in the last six days to have blown out his ACL.

Conner suffers minor injury for Steelers

During Sunday's practice, Pittsburgh Steelers rookie running back James Conner suffered an injury. Luckily, it has turned out to just be a sprained right AC joint. This is a minor injury that should cause him to only miss a few days.

The third-round pick is competing with Fitzgerald Toussaint and Knile Davis for the backup job behind Le'Von Bell, who is currently holding out. Due to Bell not being at training camp, all three have been rotating taking snaps with the first team offense.

Bills added Jones after Raiders waived him

A few days ago the Oakland Raiders parted ways with veteran Taiwan Jones, the second-to-last player on their team who had been drafted by Al Davis.

Now, the Buffalo Bills have added the veteran running back, who is expected to the to make the roster due to his kick returning and special teams ability. Head coach Sean McDermott said the signing was made to add speed to their special teams unit.