Veteran running back Matt Breida plans to retire after seven NFL seasons, sources told ESPN's Jeremy Fowler.
The Miami Dolphins recently requested a workout with Breida but he declined.
Breida, 30, finishes his career with 2,652 rushing yards and nine rushing touchdowns in 98 games for the San Francisco 49ers, Dolphins, Buffalo Bills and New York Giants. He also had 120 receptions for 935 yards and six touchdown catches.