Dolphins Add Promising Rookie RB to Strengthen Backfield
WHO:
miamidolphins.com - The Miami Dolphins announced they have claimed running back Kaytron Allen off waivers from the Washington Commanders.
miamidolphins.com - The Miami Dolphins announced they have activated defensive lineman Kenneth Grant off the injured reserve list.
miamidolphins.com - The Dolphins waived quarterback Brady Cook.
miamidolphins.com - The Dolphins elevated edge Rodney McGraw and running back Carlos Washington Jr. to the active roster.
miamidolphins.com - The rookie running back claimed by the Dolphins is Kaytron Allen.
Heavy NFL - The rookie running back claimed by the Dolphins was previously with the Washington Commanders.
Heavy NFL - The Miami Dolphins have signed a rookie running back.
Newsweek - The Miami Dolphins have added a promising rookie to their running back room.
WHAT:
miamidolphins.com - The Miami Dolphins have waived quarterback Brady Cook to make room for defensive lineman Kenneth Grant on the active roster.
miamidolphins.com - Kenneth Grant has recorded 33 tackles, 2.0 sacks, and one pass defensed in 17 career games with five starts in one season with Miami.
miamidolphins.com - Carlos Washington Jr. has appeared in two career games in two seasons with Atlanta, recording 511 rushing attempts for 2,475 yards (4.8 avg.) and 25 touchdowns, along with 87 receptions for 611 yards (7.0 avg.) and two scores during his collegiate career.
miamidolphins.com - Kaytron Allen earned second-team (AFCA) and third-team (AP) All-America honors in 2025.
miamidolphins.com - Allen finished his Penn State career as the program's all-time leader in rushing yards (4,180) and attempts (769).
miamidolphins.com - Allen ranks third in rushing touchdowns (39) and fifth in all-purpose yards (4,711) in Penn State history.
miamidolphins.com - Kaytron Allen has appeared in four career games this season with Washington, recording 12 attempts for 41 yards (3.4 avg.).
miamidolphins.com - Allen was drafted in the sixth round (187th overall) by the Commanders in the 2026 NFL Draft.
miamidolphins.com - Kenneth Grant has appeared in 17 career games with five starts in one season with Miami, recording 33 tackles, 2.0 sacks, and one pass defensed.
miamidolphins.com - Brady Cook has appeared in five career games with four starts, completing 88-of-153 passing attempts (57.5 pct.) for 739 yards and two touchdowns.
miamidolphins.com - Carlos Washington Jr. has appeared in two career games in two seasons with Atlanta.
Heavy NFL - Kaytron Allen is expected to alter the Dolphins' running back depth chart significantly.
Heavy NFL - Kaytron Allen is expected to have a serious impact on the Dolphins' running back room following his signing.
Heavy NFL - The Dolphins signed Kaytron Allen one day after his release from the Washington Commanders.
miamidolphins.com - Allen has appeared in four career games this season with Washington, recording 12 attempts for 41 yards (3.4 avg.).
miamidolphins.com - Kaytron Allen appeared in 54 career games with 24 starts during his college career at Penn State.
miamidolphins.com - Allen ranks third in rushing touchdowns (39) and fifth in all-purpose yards (4,711) in Penn State history.
miamidolphins.com - Kaytron Allen has appeared in four career games this season with Washington, recording 12 attempts for 41 yards (3.4 avg.).
miamidolphins.com - Allen was drafted in the sixth round (187th overall) by the Commanders in the 2026 NFL Draft.
miamidolphins.com - During his college career at Penn State, Allen recorded 769 rushing attempts for 4,180 yards (5.4 avg.) and 39 touchdowns.
miamidolphins.com - Allen also had 70 receptions for 490 yards (7.0 avg.) and four touchdowns.
Heavy NFL - The Dolphins signed the running back one day after his release from the Washington Commanders.
Heavy NFL - The rookie running back was signed off waivers after being unexpectedly cut despite being drafted in April.
Newsweek - The Dolphins claimed a recently released rookie running back.
WHERE:
Heavy NFL - The signing took place within the Miami Dolphins organization.
WHEN:
Heavy NFL - The rookie running back was drafted in April.
WHY:
Heavy NFL - The Dolphins are seeking reasons for optimism after their 0-4 start to the season, following the loss of star RB De'Von Achane to a torn ACL in Week 3.
Heavy NFL - The Dolphins are seeking reasons for optimism after their 0-4 start to the season.
Heavy NFL - The Dolphins are looking for reasons to believe in their season after starting 0-4.
Heavy NFL - The Dolphins are currently 0-4 this season, following the loss of star RB De'Von Achane to a torn ACL in Week 3.
miamidolphins.com - Allen earned second-team (AFCA) and third-team (AP) All-America honors in 2025.
Heavy NFL - The Dolphins' decision to claim the running back was described as a response to his "shocking release."
Heavy NFL - The Dolphins aim to strengthen their running back room with the addition of the rookie.
HOW:
miamidolphins.com - Kenneth Grant entered the NFL as Miami's first-round selection (13th overall) in the 2025 NFL Draft.
miamidolphins.com - Allen finished his Penn State career as the program's all-time leader in rushing yards (4,180) and attempts (769).
Heavy NFL - The rookie was signed off waivers.
The Miami Dolphins have waived quarterback Brady Cook to make room for defensive lineman Kenneth Grant on their active roster. Grant has made a notable impact with 33 tackles, 2.0 sacks, and one pass defensed over 17 career games, including five starts in his season with Miami. Additionally, Carlos Washington Jr. has had a strong collegiate career, with 511 rushing attempts for 2,475 yards and 25 touchdowns, along with 87 receptions for 611 yards and two scores during his time at Atlanta.