Browns rookie running back Trent Richardson was not on the field for the early portion of practice.
Richardson, who missed the entire preseason after undergoing knee surgery, was absent as the team continued preparation for Sunday's game against the New York Giants. A team spokesman said he did not know why Richardson was missing during the 15 minutes of practice open to the media and said coach Pat Shurmur would have an update following practice.
With Richardson out, running backs Montario Hardesty and Chris Ogbonnaya took snaps with Cleveland's starting offense.
Richardson has rushed for 22 yards and scored four touchdowns for the Browns (0-4), the AFC's only winless team. The No. 3 overall pick in this year's NFL draft, Richardson leads the Browns with 15 receptions for 122 yards.