Browns starting running back Peyton Hillis did not practice on Wednesday after straining his left hamstring during Sunday's loss at Oakland.
Coach Pat Shurmur had hoped Hillis would be able test his hamstring with some light running, but a team spokesman said Hillis did not do any such conditioning.
Also Wednesday, linebacker Scott Fujita was sent home earlier in the day with symptoms from his concussion. Fujita, who was injured in the fourth quarter Sunday, was at the Browns' training facility, but the team's medical staff sent the 10-year veteran home to rest.
During the early stages of Wednesday's practice open to the media, rookie nickel back Buster Skrine left the field escorted by a trainer and did not return.
"It's better," Haden said. "Last week I couldn't do any running. I wasn't ready for it. But now I'm jogging on it and just doing a whole lot of treatment -- eight hours just trying to get it right."
Copyright 2011 by The Associated Press