The Miami Dolphins might have a battle for the backup running back spot brewing with just one more preseason game left.  De’Von Achane is locked in a RB1, but J

Rookie Miami Dolphins running back Ollie Gordon II impressed in his preseason debut against the Chicago Bears. Gordon, a sixth-round pick from Oklahoma State, scored a touchdown and showcased his powerful running style. He is competing for playing time behind starter De'Von Achane and will likely see action in short-yardage situations.

Elsewhere on the ex-Broncos front, running back Royce Freeman, who was drafted by Denver in the third round of the 2018 NFL draft out of Oregon, worked out for Miami before the Dolphins opted to sign Boone. Freeman totaled 1,596 yards from scrimmage and scored nine touchdowns in three years (46 games) with the Broncos.

The Miami Dolphins indeed weren't done adding to their running back. The team announced late Monday afternoon it had signed eight-year veteran running back Mike

The Dolphins immediately got to work on finding new running backs this preseason amid Alexander Mattison’s season-ending injury.

In the wake of losing Alexander Mattison to a season-ending neck injury, the Dolphins moved quickly to add running back depth on Monday, signing veteran Aaron Shampklin, according to his agent. Shampklin, 25, has played only 28 NFL snaps on offense (in four games for Pittsburgh last season) and has six NFL carries, for 17 yards.

Former Miami Dolphins running back Matt Breida is retiring after turning down a workout request from the Dolphins.

The Miami Dolphins are evidently looking for some running back depth. But one player who they requested a workout with didn't just decline to do it. Instead, he retired. That'd be Matt Breida, who was reported Thursday as retiring from the NFL, according to ESPN's Jeremy Fowler.

The Miami Dolphins have suffered many injuries to their defense, but the most recent development is on the offensive side of the football.

Dolphins linebacker Chop Robinson was carted off the field with an undisclosed injury during Miami's joint practice with the Lions.